Title

Roy Longbottom at Linkedin  PC Benchmark Results CDDVDSpd

See Example Results Log and Results Index

Description

CDDVDSpd Benchmark measures writing, reading and deleting times/speeds of a large file and 520 small files. The large/small file MB/KB can be selected from 1MB/2KB, 2MB/4KB upwards. The benchmark also has an option to read a file of 1 MB or greater from any source. Pre-compiled versions of the benchmarks can be found in DiskGraf.zip which also contains the source code and more detailed explanations. See also DiskGraf Results.htm for speeds at different block sizes in a file and maximum bus data transfer rates. Then there is My Main Page for other PC benchmarks and results. There is also a version compiled to run via 64 Bit Windows. Details are available in 64 Bit Disk Tests.htm and some results are also included below for Windows XP x64, 64-Bit Vista and 64-Bit Windows 7 and 8. Latest benchmark is IOSpeed that combines test functions from DiskGraf and CDDVDSpd.

The main purpose of this benchmark is to show how performance can vary with file size, where speed on small files can be slow, particularly on using Compact Flash memory. Besides speeds in MBytes Per second, the results tables show average writing and reading times of the small files. The time to write these files is affected by Device Properties Policy Settings where the "Optimise for Quick Removal" option can incur a significant overhead and this is might be the default on installing a new device. "Optimise for Performance" is the preferred option.

For the record, the maximum speeds of hardware that might be tested with this benchmark are:

 
CD 1x                 0.15 MB/sec                    
DVD 1x                1.38 MB/sec                    
Compact Flash 1x      0.15 MB/sec                    
10  Mb/sec LAN        1.25 MB/sec                    
100 Mb/sec LAN       12.5  MB/sec                    
USB 1   12 Mb/sec     1.5  MB/sec (USB1/2 Full speed)
USB 2  480 Mb/sec    60.0  MB/sec (USB 2 High speed) 
USB 3.0  5 Gb/sec   625.0  MB/sec                    
IEEE 1394 400 Mb/sec 50.0  MB/sec (Firewire)         


Example Results Log File

AMD XP 2.08 GHz, Hitachi 7K250 123 GB Disk, ATA100, 7200 RPM, ATA133 mainboard, Win2K

 **********************************************************************
      Disk, CD and DVD File Writing and Reading Test Version 1.0
                 Copyright (C) Roy Longbottom 2004
                 Start at Mon Apr 12 17:36:21 2004

 Write D:\Test\ZTestRW.zzz, 1 MB,     0.01 seconds,    78.73 MB/sec.
 Read  D:\Test\ZTestRW.zzz, 1 MB,     0.08 seconds,    13.14 MB/sec.

 Writing and Reading 520 2 KB files in D:\Test\
 Writing     0.22 seconds, Speed    4.676 MB/sec.
 Reading     0.14 seconds, Speed    7.077 MB/sec.
 Delete      0.01 seconds, for 520 files + 1

 Note: the run time is as seen by the program and such as CDRW
 might not finish I/O activity until later.

                 End at Mon Apr 12 17:36:21 2004

 MB in this case is 1048576 bytes. Run time includes opening file.
 Windows 98 Version 4.10, build 1998,  
 CPU AuthenticAMD, Features Code 0383FBFF, Model Code 00000681, 2087 MHz
 Main Memory Size 523696 KB, Free 416424 KB
 Path D:\Test Size 2051 MB, Free 2039 MB 
   

To Start


Results

Old Disks and NAV Later Disk Drives Solid State Drives
USB Disk Drivee USB Disk Interface USB and Firewire Disk
USB and Flash Memory More USB and Flash Memory 4 to 16 GB Flash Memory
Network Drives Gigabit LAN CD and DVD Drives


Test Configurations

To Start



Old Disk Drives and Norton Anti-Virus

The first PC hard disk, on the PC XT in the early 1980ís, ran at 3600 RPM and had a maximum data transfer rate of around 0.6 MB/second. This rotation speed did not increase until the 1990ís. For these particular drives, data transfer rates and the time to save/load small files improved by around 10 times between 1994 and 1999. Note how much slower floppy disks are, particularly maximum MB/second and saving time for a small file.

With Norton Anti-Virus enabled, saving time of numerous small files can be rather high, making a year 2001 disk no faster than one made in 1994.

 
                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 Floppy Disks
 FloppyD1   750   300  98         1   0.022  0.026  2  0.0013  0.029  1538  69.0   45.9  90
 FloppyD2  1900   300  XP         1   0.034  0.037  2  0.0012  0.023  1667  87.0   43.3  70

 Older PCs - Hard Drives 1994 to 1999
 Disk486     66  3600  95   F16   1    1.0    1.2   2   0.06   0.07   31.7   28.6   2.0 521
                16.7ms            8    1.0    1.2  16   0.29   0.48   54.4   33.5   

 DiskSea0   100  3600  95 F16 SL  1    1.5    1.2   2   0.19   0.14   10.5   14.7   0.7 521
                16.7ms            8    1.5    1.2  16   0.93   0.91   17.2   17.6   

 DiskQua0   200  4500  NT   F32   1    4.0    3.0   2   0.32   0.16    6.3   12.3   1.1 521
                13.3ms            8    5.0    3.9  16   2.02   1.90    7.9    8.4

 DiskQua1   200  5400  95   F32   1    6.2    5.3   2   0.34   0.35    6.0    5.7   0.3 521
                11.1ms            8    7.1    7.1  16   2.45   2.60    6.5    6.2

 DiskMax0   450  7200  98   F32   1    7.5    9.7   2   0.61   0.92    3.3    2.2   0.3 521
                 8.3ms            8   11.3   11.2  16   3.97   6.88    4.0    2.3
 
 Norton Anti-Virus
 DiskLap0   400  4200  98 F32 AV  1    2.5    3.8   2   0.04   0.17   59.0   11.8   0.3 521
                14.3ms            8    4.3    4.9  16   0.46   0.84   34.8   19.0
            400  4200  98  No AV  1    3.8    4.2   2   0.33   0.67    6.1    3.0   0.3 521
                14.3ms            8    4.8    4.2  16   2.88   4.17    5.6    3.8   

 DiskSea1  1900  5400  XP NFT AV  1    7.5   19.6   2   0.06   0.52   34.5    3.9   1.2 521
                11.1ms            2   11.9   20.7   4   0.15   0.90   26.5    4.4
                                  4   12.4   22.3   8   0.30   1.64   26.3    4.9
                                  8   18.5   23.3  16   0.61   3.05   26.4    5.2
           1900  5400  XP  No AV  1    7.2   18.8   2   0.27   3.97    7.4    0.5   1.1 521
                11.1ms            2   10.9   19.7   4   1.15   7.40    3.5    0.5
                                  4   17.7   22.7   8   2.30  10.79    3.5    0.7
                                  8   19.1   23.3  16   4.57  15.58    3.5    1.0
         
         SL=Slow ISA connection, F16=FAT16, F32=FAT32, NFT=NFTS, AV=Anti-Virus,  


To Start     Results Index


Later Disk Drives

A surprise in the first example, and with some other disks, is that writing 520 2 KB files takes much longer than 4 and 8 KB files when at least the smallest will fit within a single 4 KB cluster. At least, as reading and writing can be much less than the rotation time, the diskís buffer has some impact.

DiskSea1 shows that writing time of small files can be faster on FAT partitioned inner cylinders, compared with NTFS on normally faster outer cylinders.

DiskHit1 was chosen as it was one of the fastest disks in 2004 and can transfer data at up to 60 MB/sec. Here, writing speeds of up to 8 MB sized files can apparently be faster than the diskís capability. This is due the program being informed that data transfer is completed when it has been sent to the diskís buffer. The three results are on different partitions with FAT32 format via Win2K and Win98 and NTFS using Win2K. Here, both reading and writing speeds of smaller files are much slower with NTFS.

DiskWD0 and DiskMax2 are both SATA drives. The first is probably slow due to the limited amount of free space. The second has a maximum data transfer rate no better than DiskHit1. SATA would be needed for maximum speed on a RAID0 set up. Later entries, DiskSea2 and DiskSea3, are for slightly faster SATA 2 disks. The latter is via Windows Vista 64 Bit, showing 32 and 64 bit results on two partitions. A surprise is that speed on small files is much slower on the first partition (C:). The same was apparent on a PC with Windows XP. Perhaps there is a Windows overhead checking data transfers on the System partition (there was no Anti-Virus software in use). More 64-Bit Vista results were included in October 2009 - (See Report), but using one of the current fastest disks via an eSATA external enclosure.

Tests were run using real data via copying and pasting a folder containing downloaded HTML documents with lots of tiny GIF files - 18.1 MB, 28.4 MB on disk, 3636 files in 277 folders. The PCs were restarted between runs to avoid data that might be in File Cache. Results on the Vista PC were C: 41.4 and 35.9 seconds then 30.6 seconds with AVAST off and D: 15.4, 13.2 and 8.7 seconds respectively. On the PC with XP, C: was 63 seconds, D: 55 seconds and both 22 seconds less with Norton AV off.

Results for year 2009 include those for a WD Green disk drive (DiskWDG1) running under Windows 7. The drive rotation speed is 5400 RPM but performance is as good as or better than many earlier 7200 RPM drives. The disk is partitioned and also suffers from C: being slow writing and reading small files.

DiskWD1G1, from 2014, is the first one here to demonstrate greater than 100 MB/second, writing and reading large files. However, it has a 64 MB buffer that appears to sometimes cache a file on writing, to produce more than 400 MB/second on reading. As in other cases, the C: partition, with Windows, is slower than a later partition, writing and reading small files.


                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 DiskMax1   750  7200  2K FAT32   1   22.1   21.5   2   0.27   1.65    7.5    1.2   0.1 521
 2000                             2   21.6   20.3   4   2.99   4.96    1.3    0.8
                                  4   22.6   23.7   8   5.50   7.18    1.5    1.1
                                  8   23.5   25.5  16   9.30  10.79    1.7    1.5
                                 16   23.9   26.4  32  13.83  16.82    2.3    1.9
                                 32   25.0   26.8  64  16.98  20.37    3.8    3.1

 DiskSea1  1900  5400  XP  NFTS   1    7.2   18.8   2   0.27   3.97    7.4    0.5   1.1 521
 2001                             2   10.9   19.7   4   1.15   7.40    3.5    0.5
                                  4   17.7   22.7   8   2.30  10.79    3.5    0.7
                                  8   19.1   23.3  16   4.57  15.58    3.5    1.0

 Last 3GB Partition out of 40
 DiskSea1  1900  5400  XP FAT32   1    6.4   16.9   2   0.33   3.43    6.0    0.6   0.2 521
 2001                             2    9.5   15.6   4   3.40   6.82    1.2    0.6
                                  4   12.7   16.9   8   5.56  11.23    1.4    0.7
                                  8   15.3   18.3  16  12.04  17.06    1.3    0.9

 DiskHit2  1900  7200  XP  NFTS   1   20.9   34.3   2   1.09   3.87    1.8    0.5   0.8 521
 2006            Replacement D:   2   30.7   40.2   4   2.20   8.92    1.8    0.4
                                  4   36.7   44.5   8   4.32  15.39    1.9    0.5
                                  8   44.9   27.1  16   8.41  23.11    1.9    0.7
                                 16   32.6   47.2  32  15.25  27.02    2.1    1.2
                                 32   48.0   50.2  64  25.68  37.26    2.5    1.7

 DiskHit2  1900  7200  XP  NFTS   1   20.7   35.6   2   0.88   0.64    2.2    3.1   0.8 521
 2006            Replacement C:   2   23.8   37.1   4   1.67   1.06    2.4    3.8
                                  4   21.8   38.8   8   2.83   1.96    2.8    4.1
                                  8   31.4   28.0  16   3.84   3.25    4.2    4.9
                                 16   39.9   48.4  32   5.00   5.17    6.4    6.2
                                 32   35.8   44.4  64   7.81   8.94    8.2    7.2   

 DiskHit1  2080  7200  2K FAT32   1   71.7   13.8   2   4.68   9.01    0.4    0.2   0.0 521
 2004                             2   68.9   25.6   4  11.30  18.12    0.4    0.2
                                  4   62.0   34.8   8  20.02  30.13    0.4    0.3
                                  8   66.2   43.3  16  31.47  45.69    0.5    0.4
                                 16   58.8   46.3  32  46.72  57.83    0.7    0.6
                                 32   50.8   51.7  64  52.63  58.11    1.2    1.1

 DiskHit1  2080  7200  2K  NTFS   1   76.9    4.9   2   0.77   0.42    2.6    4.8   0.0 521
 2004                             2   79.6   10.2   4   1.28   0.79    3.1    5.1
 D: After 20 GB                   4   65.4   19.0   8   1.97   1.18    4.1    6.8
                                  8   66.1   19.5  16   3.68   2.10    4.3    7.6
                                 16   46.9   44.4  32   8.86   3.50    3.6    9.2
                                 32   55.7   44.5  64  13.78   7.28    4.6    8.8

 DiskHit1  2080  7200  98 FAT32   1   78.7   13.1   2   4.68   7.08    0.4    0.3   0.0 521
 2004                             2   81.1   28.8   4   9.65  13.90    0.4    0.3
                                  4   47.3   34.7   8  18.19  24.38    0.4    0.3
                                  8   51.8   43.0  16  26.84  37.73    0.6    0.4
                                 16   50.0   46.1  32  48.71  50.80    0.7    0.6
                                 32   44.9   51.1  64  41.18  56.82    1.6    1.1


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                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 DiskWD0   3000  7200  XP  NTFS   1   17.7   24.3   2   0.55   0.69    3.7    2.9   0.1 521
 2004            SATA             2   23.8   22.2   4   1.99   1.66    2.0    2.4
               75% Full           4   23.6   14.5   8   2.52   2.30    3.2    3.5
                                  8   26.7   24.3  16   2.66   2.26    6.0    7.1
                                 16   32.0   29.2  32   7.89   6.29    4.1    5.1
                                 32   35.9   30.9  64  13.53   9.10    4.7    7.0
                                 64   33.8   34.9 128  18.90  17.33    6.8    7.4

 DiskMax2  2210  7200 x64  NTFS   1   19.5   25.5   2   0.35   0.44    5.7    4.5   0.1 521
 2005            SATA             2   27.1   30.8   4   1.20   0.87    3.3    4.6
                                  4   32.1   38.4   8   2.45   1.59    3.3    5.0
                                  8   40.0   41.9  16   5.56   3.67    2.9    4.4
                                 16   48.1   47.0  32   8.51   5.20    3.8    6.2
                                 32   52.5   41.3  64  16.47  10.74    3.9    6.0
                                 64   56.3   53.4 128  28.04  21.08    4.6    6.1

 DiskSea2  2400  7200  XP  NTFS   1   21.6   42.6   2   0.49   0.44    3.9    4.4   0.1 521
 2006            SATA 2           2   21.5   44.2   4   1.85   1.76    2.1    2.2
                                  4   29.5   48.8   8   3.03   3.12    2.6    2.5
                                  8   40.7   58.2  16   3.30   3.39    4.7    4.6
                                 16   54.1   68.8  32   7.97   9.21    3.9    3.4
                                 32   57.3   66.6  64   9.30   8.35    6.7    7.5 

 DiskLap1  1900  5400 V32  NFTS   1    7.4   94.7   2   0.76   3.41    2.6    0.6   0.2 521
 D:              SATA             2   15.0   56.0   4   1.46   7.81    2.7    0.5
 2007                             4   24.3   55.5   8   1.34  10.84    6.0    0.7
                                  8   27.6   46.1  16   2.50  14.90    6.4    1.1
                                 16   34.3   48.4  32   4.74  32.74    6.8    1.0
                                 32   39.4   48.3  64   9.17  44.58    7.0    1.4

 DiskLap2  1830  5400 V32  NTFS   1   75.2   18.2   2   2.04   3.80    1.0    0.5   0.2 521
 D:              SATA             2   82.9   20.8   4   6.02   6.54    0.7    0.6
 2008                             4   51.8   26.0   8  11.47  10.56    0.7    0.8
                                  8   47.4   31.7  16  19.69  25.56    0.8    0.6
                                 16   34.9   36.9  32  25.61  33.52    1.2    1.0
                                 32   38.4   37.1  64  28.24  36.14    2.3    1.8

 DiskLap3  2000  5400 VHB  NTFS   1   19.2   24.1   2   0.48   0.34    4.1    5.9   0.4 521
 C:              SATA             2   28.3   17.1   4   1.16   0.68    3.4    5.9
 2008                             4   35.0   31.0   8   1.15   1.34    7.0    6.0
                                  8   27.7   34.1  16   1.70   4.44    9.4    3.6
                                 16   33.8   35.9  32   3.63   6.98    8.8    4.6
                                 32   36.4   39.3  64   7.75  10.25    8.3    6.2

                      VHB = Vista Home Basic

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                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 DiskSea3  2400  7200 V64  NTFS   1   19.7   31.4   2   0.50   0.55    4.0    3.6   0.1 521
 C: 32 bit       SATA 2           2   25.5   41.6   4   0.69   1.18    5.8    3.4
 2007                             4   28.8   50.2   8   1.75   1.75    4.6    4.6
                                  8   28.8   49.8  16   2.53   2.98    6.3    5.4
                                 16   45.3   52.3  32   4.81   5.70    6.7    5.6
                                 32   45.6   60.3  64  10.33   9.46    6.2    6.8
                                 64   52.1   60.8 128  17.47  15.24    7.3    8.4

 DiskSea3  2400  7200 V64  NTFS   1   18.0   28.1   2   1.99   8.26    1.0    0.2   0.1 521
 D: 32 bit                        2   23.5   29.4   4   6.54   8.93    0.6    0.4
 Second 200 GB                    4   29.5   40.6   8  13.78  27.16    0.6    0.3
                                  8   40.3   51.4  16  27.99  49.34    0.6    0.3
                                 16   51.4   55.9  32  34.24  54.13    0.9    0.6
                                 32   51.0   54.8  64  41.08  56.02    1.6    1.1
                                 64   52.9   57.3 128  47.29  49.47    2.7    2.6

 DiskSea3  2400  7200 V64  NTFS   1   22.9   39.6   2   0.55   0.50    3.6    4.0   0.1 521
 C: 64 bit                        2   25.7   40.1   4   1.14   1.12    3.5    3.6
                                  4   31.1   46.6   8   1.86   1.69    4.3    4.7
                                  8   39.2   50.0  16   2.83   2.88    5.7    5.6
                                 16   47.6   57.8  32   5.12   4.95    6.2    6.5
                                 32   50.9   58.6  64  11.16   9.66    5.7    6.6
                                 64   52.7   61.2 128  17.22  14.80    7.4    8.6

 DiskSea3  2400  7200 V64  NTFS   1   15.8   36.8   2   2.26   8.30    0.9    0.2   0.1 521
 D: 64 bit                        2   24.9   41.6   4   7.00  14.71    0.6    0.3
                                  4   31.5   44.8   8  14.46  26.89    0.6    0.3
                                  8   38.1   46.0  16  23.57  45.22    0.7    0.4
                                 16   44.7   48.5  32  34.23  50.37    0.9    0.6
                                 32   45.5   54.2  64  41.50  53.17    1.5    1.2
                                 64   54.9   55.4 128  42.67  53.46    3.0    2.4

 DiskSea3  2400  7200 V64  NTFS   1   17.3   35.5   2   1.83   3.22    1.1    0.6
 D: 64 bit                        2   22.8   37.8   4   5.23   6.92    0.8    0.6
 AVAST Anti-Virus                 4   27.9   45.8   8   8.70  10.67    0.9    0.7
                                  8   42.9   49.7  16  17.11  15.44    0.9    1.0

 DiskSea3  2400  7200 V64  NTFS   1   26.4   40.3   2   0.54   0.51    3.7    3.9   0.2 521
 C: 64b                           2   29.9   36.6   4   1.07   1.01    3.7    4.0
 Vista SP1                        4   32.2   44.4   8   1.73   1.45    4.6    5.5
                                  8   40.2   46.5  16   3.15   3.02    5.1    5.3
                                 16   43.6   53.3  32   6.08   5.99    5.3    5.3
                                 32   46.0   57.8  64  13.00  11.40    4.9    5.6
                                 64   54.9   59.8 128  21.10  19.40    6.1    6.6

 DiskSea3  2400  7200 V64  NTFS   1   19.8   35.4   2   1.81   2.22    1.1    0.9   0.1 521
 D: 64b                           2   30.3   51.9   4   3.98   4.41    1.0    0.9
 Vista SP1                        4   31.7   44.4   8   7.46   7.18    1.1    1.1
                                  8   44.5   52.8  16  15.25  22.43    1.0    0.7
                                 16   50.2   55.3  32  35.50  55.80    0.9    0.6
                                 32   53.2   56.1  64  41.97  50.44    1.5    1.3
                                 64   51.8   54.4 128  46.94  53.93    2.7    2.4

                      V64 = 64-Bit Vista

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                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 DiskSea4  2400  7200 V64  NTFS   1   15.6   40.8   2   1.68   3.33    1.2    0.6   0.1 521
 Vista SP1                        2   24.2   61.4   4   5.66   7.88    0.7    0.5
 Akasa eSATA                      4   32.9   64.1   8  10.74  13.40    0.7    0.6
 AVAST Anti-Virus                 8   45.5   84.1  16  19.55  29.45    0.8    0.5
                                 16   60.9   93.5  32  26.23  34.26    1.2    0.9
                                 32   78.1   96.7  64  45.37  57.50    1.4    1.1
                                 64   89.6  108.9 128  58.46  69.94    2.2    1.8

 DiskWDG1  3000  5400 764  NTFS   1   19.5   42.6   2   0.37   0.32    5.4    6.3   0.1 521
 C: 64b                           2   24.9   62.1   4   0.95   0.64    4.2    6.3
 AVAST                            4   36.2   48.9   8   1.61   1.10    5.0    7.3
                                  8   37.0   71.0  16   2.07   2.60    7.7    6.2
                                 16   69.5   88.2  32   7.90   4.36    4.1    7.3
                                 32   79.1   88.9  64  11.06  12.40    5.8    5.2
                                 64   73.0   91.7 128  23.97  22.60    5.3    5.7

 DiskWDG1  3000  5400 764  NTFS   1   30.5   46.3   2   0.49   0.32    4.1    6.2   0.1 521
 C: 32b                           2   28.1   47.6   4   1.01   0.61    4.0    6.6
 AVAST                            4   42.6   53.9   8   1.77   1.09    4.5    7.3
                                  8   56.0   49.7  16   3.61   2.38    4.4    6.7
                                 16   71.1   79.1  32   8.69   4.83    3.7    6.6
                                 32   80.7   89.0  64  17.96  10.60    3.6    6.0
                                 64   89.2   91.8 128  35.80  24.24    3.6    5.3

 DiskWDG1  3000  5400 764  NTFS   1   33.0   38.7   2   2.57   4.12    0.8    0.5   0.1 521
 D: 64b                           2   41.4   54.7   4   8.10  10.18    0.5    0.4
 AVAST                            4   58.2   73.3   8  15.64  16.02    0.5    0.5
                                  8   58.7   75.8  16  21.98  27.14    0.7    0.6
                                 16   81.0   86.3  32  37.60  47.90    0.9    0.7
                                 32   83.0   93.4  64  50.21  57.37    1.3    1.1
                                 64   85.1   93.0 128  70.69  93.87    1.8    1.4

 DiskWDG1  3000  5400 764  NTFS   1   25.3   51.1   2   2.49   3.50    0.8    0.6   0.1 521
 D: 32b                           2   32.1   44.8   4   7.31   8.28    0.5    0.5
 AVAST                            4   47.8   91.9   8  15.22  17.97    0.5    0.4
                                  8   51.7   75.9  16  25.84  32.33    0.6    0.5
                                 16   69.6   92.8  32  46.66  53.52    0.7    0.6
                                 32   79.7   89.4  64  49.45  74.38    1.3    0.9
                                 64   80.8   87.4 128  72.45  87.93    1.8    1.5

 DiskWDB1  3700  7200 864  NTFS   1   24.9   50.6   2   1.65   4.76    1.2    0.4  0.10 521
                                  2   42.5  446.3   4   5.65  10.66    0.7    0.4
 D: 64 Bit                        4   47.0  102.9   8  10.74  15.47    0.7    0.5
 64 MB cache                      8   70.8  115.0  16  22.36  33.27    0.7    0.5
                                 16   92.8  178.3  32  39.41  77.88    0.8    0.4
                                 32  102.9  195.5  64  65.00 108.14    1.0    0.6
                                 64  121.1  143.2 128  94.90 136.24    1.3    0.9

 DiskWDB1  3700  7200 864  NTFS   1   32.6   30.9   2   0.43   1.11    4.7    1.8  0.12 521
                                  2   35.4   87.1   4   2.48   2.26    1.6    1.8
 C: 64 Bit                        4   44.1   74.7   8   3.68   2.66    2.2    3.0
 64 MB cache                      8   62.3   98.2  16   4.59   2.99    3.5    5.4
                                 16   67.3  123.8  32   7.44   5.62    4.3    5.7
                                 32   99.9  126.5  64  13.19   9.84    4.9    6.5
                                 64  118.5  142.4 128  22.59  17.22    5.7    7.4

                      764 = 64-Bit Windows 7, 864 = 64-Bit Windows 8 


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Solid State Drives

Some SSDs could be rated as SATA III where, on a compatible bus, could achieve maximum file writing and reading speeds of somewhat less than 600 MB/second. Others could be slower or limited by the bus to run at SATA II speeds approaching 300 MB/second (typically 230 to 250 MB/s). SATA III performance is not currently achievable on single disk drives. At least for the first set of results, minimum time to write or read small files is no better than on some disk drives.



                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs


 SSDSam1   1600  SSD 764          1  144.2  140.8   2   4.06   5.10    0.5    0.4   0.1 521
                                  2  166.9  179.9   4   8.02   9.27    0.5    0.4
                                  4  208.5  180.8   8  15.31   7.15    0.5    1.1
                                  8  214.0  187.3  16  30.16  16.28    0.5    1.0
                                 16  217.4  195.4  32  53.75  40.28    0.6    0.8
                                 32  214.6  199.3  64  83.08  67.87    0.8    0.9
                                 64  213.9  195.4 128 126.00 100.33    1.0    1.3

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USB Disk Drives

The results are for a Freecom 250 GB USB disk drive, using an Hitachi 7200 RPM drive with an 8 MB buffer. Format is FAT32. The benchmark was run on three PCs with High Speed USB 2, using WinXP, Win2K and WinXP x64. Default Properties Policy setting with WinXP (including x64) is "Optimise for Quick Removal" (OQ in the tables) but "Optimise for Performance" (OP) works, unlike with Compact Flash. Win2K only operates with "Optimise for Performance".

The disk is probably capable of achieving 60 MB/second, same as the High Speed USB 2 maximum speed. The maximum MB/second shown in the table are far short of this but show significant improvements on later vintage PCs.

The time to save small files might be of particular concern, particularly using the default option of "Optimise for Quick Removal". Worst case on the older PC is with this and Norton Anti-Virus (AV) enabled, where the minimum writing time is 74 milliseconds per file. This is reduced to 35 milliseconds with no AV and less than 3 milliseconds using "Optimise for Performance". Even the best system is relatively slow on "Optimise for Quick Removal", saving data at around one small file per disk revolution.

Last results are for 64-Bit Vista, showing that the 64 bit version of the program produces the same performance as the 32 bit variety and some speeds are slower than via XP x64 (See also 4 GB Flash Memory).

Note that reported deletion times are close to zero seconds using "Optimise for Performance". At this stage, the File Allocation Tables may not have been written as a "Lazy Flush" is used by Windows. That is why the "Safely Remove Hardware" function should be selected before unplugging. This also applies when saving a file.

DiskUSB3a is connected via a USB 3.0 port. Large file writing and reading times can be 3 to 4 times faster than other USB 2 drives, with small files 2 to 3 times faster.


                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Disk Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz   RPM     & Mode      MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 DiskUSB2a 1900  7200  XP F32 AV  1    5.4   11.4   2   0.03   0.04   74.1   52.6  12.0 521
 USB2 Card                        2    7.4    9.7   4   0.05   0.07   75.5   55.6

 DiskUSB2a 1900  7200  XP F32 OQ  1    7.6   10.7   2   0.06   1.06   35.1    1.9  12.2 521
 USB2 Card                        2    9.6   11.6   4   0.11   2.23   35.1    1.8
                                  4   11.2   12.8   8   0.23   4.24   35.2    1.9
                                  8   12.1   13.2  16   0.44   6.57   36.5    2.4
                                 16   12.5   13.4  32   0.87   9.50   36.7    3.4
                                 32   13.1   13.5  64   1.67  13.01   38.3    4.9

 DiskUSB2a 1900  7200  XP F32 OP  1   11.5   10.5   2   0.68   1.12    2.9    1.8  0.46 521
 USB2 Card                        2   12.1   11.8   4   1.36   2.27    2.9    1.8
                                  4   12.6   13.0   8   2.70   4.23    3.0    1.9
                                  8   13.2   13.4  16   4.68   6.85    3.4    2.3
                                 16   13.5   13.5  32   7.26   9.57    4.4    3.3
                                 32   13.6   13.6  64  10.70  13.07    6.0    4.9

 DiskUSB2c 2080  7200  2K F32 OP  1   16.0   23.1   2   2.64   2.82    0.8    0.7  0.02 521
 USB2 on board                    2   24.0   21.4   4   5.02   5.51    0.8    0.7
                                  4   25.2   22.8   8   8.99   9.63    0.9    0.8
                                  8   25.7   26.1  16  14.01  15.55    1.1    1.0
                                 16   25.8   26.4  32  18.79  20.91    1.7    1.5
                                 32   26.0   27.2  64  23.18  26.06    2.8    2.5

 DiskUSB2b 2210  7200 x64 F32 OQ  1   26.6   25.7   2   0.27   2.84    7.4    0.7  3.06 521
 USB2 on board                    2   26.0   23.9   4   0.54   5.87    7.4    0.7
                                  4   28.9   28.5   8   1.08  10.53    7.4    0.8
                                  8   29.6   29.7  16   2.04  17.22    7.8    0.9
                                 16   30.8   31.6  32   3.96  24.01    8.1    1.3
                                 32   31.6   32.6  64   7.23  30.65    8.8    2.1

 DiskUSB2b 2210  7200 x64 F32 OP  1   27.2   22.5   2   2.77   3.00    0.7    0.7  0.02 521
 USB2 on board                    2   29.5   25.1   4   5.20   5.81    0.8    0.7
                                  4   31.3   28.1   8   9.39  10.45    0.9    0.8
                                  8   32.2   31.3  16  15.23  17.25    1.1    0.9
                                 16   32.5   32.0  32  22.50  24.41    1.4    1.3
                                 32   32.8   32.3  64  29.63  31.04    2.2    2.1

 DiskUSB2d 2400  7200 V64 F32 OQ  1   19.2   16.2   2   0.28   2.36    7.1    0.8  2.80 521
 64 Bit Version                   2   20.3   19.8   4   0.58   4.71    6.9    0.8
                                  4   23.7   21.6   8   1.10   8.52    7.3    0.9
                                  8   24.5   28.2  16   2.08  14.24    7.7    1.1
                                 16   25.2   29.2  32   4.08  21.10    7.8    1.5
                                 32   25.4   31.3  64   6.93  27.98    9.2    2.3

 DiskUSB2d 2400  7200 V64 F32 OP  1   23.0   14.5   2   2.34   2.43    0.9    0.8  0.08 521
 64 Bit Version                   2   24.1   22.5   4   4.41   4.72    0.9    0.8
                                  4   25.1   25.9   8   7.82   8.50    1.0    0.9
                                  8   25.5   28.8  16  12.48  14.27    1.3    1.1
                                 16   25.8   31.2  32  17.78  21.14    1.8    1.5
                                 32   26.0   31.6  64  22.72  28.41    2.8    2.3

 DiskUSB2d 2400  7200 V64 F32 OP  1   23.0   15.4   2   2.36   2.44    0.8    0.8  0.08 521
                                  2   24.2   22.4   4   4.43   4.73    0.9    0.8
                                  4   25.1   25.9   8   7.82   8.54    1.0    0.9
                                  8   25.6   29.2  16  12.50  14.32    1.3    1.1
                                 16   25.8   31.1  32  17.82  21.14    1.8    1.5
                                 32   26.0   31.8  64  22.70  28.15    2.8    2.3

 DiskSea4  2400  7200 V64 NTF OP  1   20.0   17.2   2   0.43   1.40    4.7    1.4  0.14 521
 Vista SP1                        2   23.8   28.6   4   1.41   2.38    2.8    1.7
 Akasa USB                        4   22.0   23.5   8   2.73   4.85    2.9    1.6
 AVAST Anti-Virus                 8   25.7   31.1  16   5.16   9.29    3.1    1.7
                                 16   26.5   28.6  32   8.98  16.75    3.6    1.9
                                 32   27.0   31.1  64  13.31  23.34    4.8    2.7
                                 64   27.1   31.8 128  17.74  27.04    7.2    4.7

 DiskUSB3a 3700  5400 864 NTF OP  1   13.7  202.0   2   1.01   3.69    2.0    0.5  0.22 521
 Windows 8.1                      2   32.6   89.6   4   3.61   7.16    1.1    0.6
 64 Bit                           4   29.4  111.2   8   6.91  12.70    1.2    0.6
 AVAST Anti-Virus                 8   45.3  123.2  16  11.44  21.86    1.4    0.7
                                 16   36.3  120.0  32  22.92  46.70    1.4    0.7
                                 32   70.5  100.9  64  40.97  66.04    1.6    1.0
                                 64   94.2  112.7 128  55.72  96.43    2.3    1.3
  

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FireWire and USB Disk Drives

Tests were run using various PCs, disks and interfaces, the former identified by the MHz & Disk column below and key details at the end of the document. Disk P is a 2.5 inch, 5400 RPM, 250 GB WD Passport in a tiny enclosure.

The other disk is a 120 GB WD 1200JB, IDE, 7200 RPM capable or running at 748 Mb/sec. FAT and NTFS partitions were used, both having 4 KB cluster size. This was tested in a Hiyatec enclosure (disk H) with USB and Firewire connections and a Sohouse IDE/USB adapter (disk S). For system 2400 see Key DiskSea3, 1830 is DiskLap2, 2210 is DiskMax2 and for laptop 1800 see CFUSBxc.

Results shown are average milliseconds per file for writing and reading small files, 2 KB to 64 KB, and minimum milliseconds per MByte from the large file tests. The latter are based on writing and reading single files and might be inaccurate.

Format and Optimisation - Using Optimise For Quick Removal, writing NTFS small files is two to three times faster than FAT and the overheads involved can affect writing larger files. With Optimise For Performance, writing time of small files can be further reduced, with FAT formatting often having the edge. The time to read small files or write/read large files seems to be less dependent on formatting and optimisation.

Same CPU Different Disk (2400P/2400H) - In both cases, reading speed of large files appears to be limited by USB speed, it being the same via a 5400 RPM disk and one at 7200 RPM but the 11.1 and 8.3 millisecond rotational delays could be responsible for differences in writing speeds, influenced by updating the File Allocation Table with FAT format and Quick Removal. The Passport disk with FAT has 32 KB clusters but Optimise For Performance comparisons suggest that this has little impact.

Same CPU, Same Disk, Different Interface (2400S/2400H, 1830S/1830H) - The Hiyatec enclosure is around 45% faster on handling the large files and 8% to 51% faster on the average small file. (2210H FW1/FW2) FW2 is on the motherboard and FW1 on a Creative audio board. The former is up to 34% faster.

Same Disk, Different CPUs (2400H/2210H/1830H, 2400S/1830S) - These comparisons are affected by different hardware, Windows version and drivers. So, the fastest processors do not necessarily produce the highest speeds.

Same CPU, Same Disk, USB and Firewire (2210H, and 1830H USB/FW ) - High Speed USB 2 transfers data at 480 Mbits/second and Firewire at 400 Mbits/second. Then there are overheads, some of which involve transmission of additional bits associated with handshaking, error correction and block/packet overheads. As demonstrated in the above measurements, there are also overheads that depend on the speed of the interface, other hardware and probably software efficiency. It appears that USB overheads are higher than those for Firewire, sometimes producing slower speed data transfers and noticeable on small file sizes. For both systems, average times to read small files are >24% faster using Firewire but generally less so on writing. With large files on the laptop (1830H), writing speeds are quite similar but Firewire is typically 15% faster on reading. Using the desktop (2210H) USB is 33% faster on writing large files but similar speed to Firewire on reading. The older laptop (1800H) has slow USB 1 and Firewire, where the speed difference is enormous.

                   Write                               Read
 MHz & USB  Format       msecs per file at KB     Min       msecs per file at KB      Min
 Disk  FW     Opt.    2    4    8   16   32   64 ms/MB    2    4    8   16   32   64 ms/MB

 2400P USB F32 OQ   8.7  8.5  8.9  9.1 10.7 10.7  52    1.6  1.6  1.6  1.7  2.1  3.1  32
 2400P USB NTF OQ   2.1  2.3  2.5  3.0  3.5  4.3  44    1.1  1.2  1.3  1.5  2.2  3.1  35
 2400P USB F32 OP   1.2  1.2  1.1  1.4  2.1  2.9  41    1.7  1.7  1.8  1.8  2.1  3.1  32
 2400P USB NTF OP   1.0  1.0  1.2  1.5  2.1  3.3  41    1.2  1.2  1.3  1.5  2.2  3.0  32

 2400S USB F32 OQ   6.1  6.2  6.3  6.7  7.5  9.2  57    1.9  2.0  2.1  2.6  3.4  5.1  45
 2400S USB NTF OQ   2.1  2.1  2.3  2.7  3.5  5.1  56    1.2  1.2  1.3  1.9  2.5  3.9  46

 1830S USB F32 OQ   6.7  7.2  7.4  8.4  9.5 12.1  74    1.3  1.3  1.5  1.8  2.3  3.9  53
 1830S USB NTF OQ   3.2  3.4  3.4  4.4  5.3  7.7  65    2.1  1.3  1.6  1.9  2.3  3.9  54

 2400H USB F32 OQ   4.1  4.1  4.3  4.5  5.1  6.1  40    1.6  1.1  1.1  1.6  2.1  3.7  32
 2400H USB NTF OQ   3.2  1.8  2.0  2.2  2.7  3.8  38    1.9  1.1  1.2  1.6  2.1  3.3  34
 2400H USB F32 OP   1.9  0.9  1.0  1.3  1.8  2.9  39    2.1  1.2  1.2  1.6  2.1  3.7  32
 2400H USB NTF OP   2.2  1.0  1.1  1.4  1.9  2.9  39    2.1  1.4  1.2  1.6  2.0  3.2  33

 1830H USB F32 OQ   6.8  7.4  6.7  7.3  8.3  9.7  47    1.7  1.1  1.3  1.7  1.9  2.7  37
 1830H USB NTF OQ   3.0  3.1  3.0  3.7  4.5  5.2  43    1.2  1.1  1.3  1.7  2.0  2.7  37
 1830H USB F32 OP   2.2  1.2  1.3  2.0  2.3  3.3  44    2.3  1.2  1.5  1.7  2.0  2.7  36
 1830H USB NTF OP   2.5  1.3  1.6  1.9  2.5  3.5  43    2.2  1.1  1.3  1.9  2.1  2.9  36

 2210H USB F32 OQ   4.4  4.5  4.5  4.7  5.1  5.9  30    1.9  1.8  1.2  1.6  2.1  3.6  31
 2210H USB NTF OQ   2.2  1.2  1.2  1.4  1.8  2.5  29    1.7  1.3  1.2  1.6  2.1  3.0  32
 2210H USB F32 OP   2.0  1.1  1.1  1.3  1.7  2.4  29    2.2  2.2  2.2  1.6  2.1  3.4  32
 2210H USB NTF OP   1.9  1.2  1.2  1.4  1.8  2.6  28    1.8  1.2  1.2  1.6  2.0  3.0  31

 1830H FW  F32 OQ   3.3  3.1  3.5  4.2  5.4  7.8  49    0.7  0.7  0.9  1.0  1.7  2.2  30
 1830H FW  NTF OQ   2.9  1.5  1.6  2.7  3.5  5.3  43    1.1  0.6  0.9  1.2  1.5  2.7  33
 1830H FW  F32 OP   2.1  0.8  0.9  1.3  2.5  4.0  49    1.9  0.8  0.8  1.1  1.6  2.4  31
 1830H FW  NTF OP   2.2  0.9  1.1  1.6  2.7  4.4  41    1.4  0.9  0.8  1.2  1.6  2.4  31

 2210H FW2 F32 OQ   2.8  2.9  3.0  3.3  3.9  5.2  39    0.6  0.6  0.8  1.0  1.8  2.8  31
 2210H FW2 NTF OQ   2.3  0.8  1.0  1.3  1.9  3.1  36    1.2  0.6  0.8  1.1  1.5  2.8  35
 2210H FW2 F32 OP   0.7  0.8  0.9  1.2  1.8  3.0  38    0.6  1.7  1.7  1.1  1.9  2.6  32
 2210H FW2 NTF OP   1.4  0.8  1.0  1.3  1.9  3.1  38    1.6  0.7  0.8  1.0  1.4  2.7  29

 2210H FW1 F32 OQ   3.1  3.1  3.3  3.6  4.3  5.6  42    1.0  1.1  0.9  1.3  2.0  3.8  39
 2210H FW1 NTF OQ   2.2  0.9  1.1  1.4  2.1  3.4  42    1.1  0.8  0.8  1.3  2.0  3.8  42

 1800H FW  F32 OQ   3.4  3.4  3.5  3.9  4.5  5.8  39    1.7  1.7  2.7  2.7  3.6  5.6  31
 1800H USB F32 OQ    33   36   42   50   70  107 1235    11   15   27   44   80  148 1176

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USB and Flash Memory

The first table below shows results on the same 128 MB Compact Flash card via Windows 2000 and Windows XP, with the card formatted as FAT and NTFS. The results are from 1MB/2KB to 8MB/16KB. With a maximum speed of 1.92 MB/sec, the card probably has a speed rating of around 12x. Writing and reading speeds of large files and reading speeds of small files are similar. So the results to examine are milliseconds for writing small files.

The first two sets of results are using Windows 2000, which runs in "Optimise for Performance" mode (see USB Disks). These demonstrate that writing small files is slower with NTFS format.

The fourth result is via Windows XP, that works in "Optimise for Quick Removal" mode. The saving time of small files (here at least 2.5 minutes for 1000) is unacceptable to some.

The third result has a slight modification to the benchmark program, using FILE_FLAG_WRITE_THROUGH in CreateFile. This tells Windows not to use Lazy Flush and to write through any intermediate cache. In this case, writing time of small files is the worst.

Final details show 8MB/2KB speeds with Norton Anti-Virus enabled and results on a card reader built into a PC.

Deleting files is also slow using "Optimise for Quick Removal", the File Allocation Table apparently being rewritten for every delete. Delete time is also fairly constant for the file size range used. Note that, on using "Optimise for Performance", there is a burst of activity several seconds after the program has indicated completion. This will be the File Allocation Table being updated. The update is fairly quick but the card is certainly unsafe to remove before this is finished.

More Below


                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Size Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz    MB    & Mode       MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 CFUSB2e   2080   128 2K    FAT   1   0.53   1.91   2   0.21   0.36     10      6    1  521
                                  2   0.50   1.92   4   0.36   0.66     11      6
                                  4   0.56   1.92   8   0.44   0.98     18      8
                                  8   0.59   1.92  16   0.52   1.30     31     12

 CFUSB2e   2080   128 2K   NTFS   1   0.57   1.52   2   0.12   0.39     16      5    4  521
                                  2   0.58   1.92   4   0.20   0.57     20      7
                                  4   0.63   1.92   8   0.19   0.86     43      9
                                  8   0.59   1.90  16   0.20   1.27     79     13

 CFUSB2e   2080   128 2K WT FAT   1   0.53   1.90   2   0.01   0.44    200      5    1  521
                                  2   0.43   1.86   4   0.02   0.73    222      5
                                  4   0.48   1.92   8   0.04   1.06    229      8
                                  8   0.49   1.85  16   0.07   1.38    239     12

 CFUSB2d   1900   128 XP    FAT   1   0.67   1.71   2   0.01   0.35    154      6   59  521
                                  2   0.64   1.81   4   0.03   0.65    154      6
                                  4   0.59   1.90   8   0.05   0.97    163      8
                                  8   0.57   1.86  16   0.09   1.30    176     12

 CFUSB2d   1900   128 XP AV FAT   8   0.51   1.85   2   0.01   0.13    222     15   78  521
 CFinBox   3000   128 XP    FAT   8   0.59   0.90   2   0.08   0.10     26     20    8  521
  

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More USB and Flash Memory

20 MB Card - USB1/2, PCMCIA, LP Port - This card can be read at >1.5 MB/second but this is restricted to < 1 MB/second via USB 1. Of particular note is the slow reading speed via the LP Port card reader. Note that, for 16 KB small files, writing and deleting times are less than the faster 128 MB card above. This will be due to the latter having a larger File Allocation Table.

32 MB Card - This and other results are for fastest/slowest at 8 MB and 2 KB. Via Win XP, this is mainly three times faster than the 128 MB card and WinXP x64 makes no difference. It seems that PCMCIA small file performance also suffers under WinXP and large file speed is limited by this type of connection.

256 MB Card - This is rated at 45x (6.75 MB/sec) and reading speed can achieve this. Writing speed of large files is also relatively faster than the other cards but that for small files is again very slow via WinXP.

512 MB USB Flash Drive - This has the fastest reading speed with large files (66x ?), but writing speed is less than the 256 MB card. Small file writing performance and deletion time via WinXP are better than on the other cards (above).

Last are some 2009 measurements on SD camera cards. The slower 32 MB card was supplied with a Canon camera. The 2 GB one is a SanDisk Ultra II card with a 100x (15 MB/sec) speed rating. Note that camera continuous shooting tests showed that the 2 GB card was only slightly faster and the smaller one could save the photographs at around 3.6 MB/second (2.7 MB at 1.33 per second), faster than via USB.

More Below


                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Size Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz    MB    & Mode       MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 CFUSB1d   1900    20  XP   FAT   8   0.43   0.91  16   0.14   0.52    113     31   30  521
 CFUSB2d   1900    20  XP   FAT   8   0.45   1.51  16   0.17   1.01     95     16   22  521
 CFLPPortb  750    20  2K   FAT   8   0.22   0.09  16   0.20   0.09     82    174    1  521
 CFPCMCIAa  400    20  98   FAT   8   0.48   1.58  16   0.23   1.38     71     12   14  521
 CFUSB1b    750    20  98   FAT   8   0.46   0.96  16   0.26   0.78     61     21    9  521
 CFUSB1b    750    20  2K   FAT   8   0.48   0.97  16   0.36   0.60     45     27    3  521
 CFUSB2e   2080    20  2K   FAT   8   0.47   1.53  16   0.39   1.05     41     15    1  521

 CFPCMCIAc 1800    32  XP   FAT   8   0.92   1.23   2   0.04   0.83     57      2   19  521
 CFUSB2d   1900    32  XP   FAT   8   1.73   5.59   2   0.04   0.37     56      5   23  521
 CFUSB2f   2210    32 X64   FAT   8   1.71   5.73   2   0.04   0.43     56      5   23  521
 CFUSB2e   2080    32  2K   FAT   8   1.80   5.78   2   0.21   0.44     10      5    1  521
 CFPCMCIAa  400    32  98   FAT   8   1.06   1.31   2   0.25   0.54      8      4    0  521

 CFUSB2d   1900   256  XP   FAT   8   3.02   6.61   2   0.01   0.38    182      5   62  521
 CFUSB2e   2080   256  2K  NTFS   8   4.40   6.07   2   0.10   0.46     21      4    1  521
 CFUSB2d   1900   256  XP  NTFS   8   4.13   6.59   2   0.21   0.38     10      5    3  521
 CFUSB2e   2080   256  2K   FAT   8   4.24   6.81   2   0.28   0.46      7      4    1  521

 FDUSB2d   1900   512  XP   FAT   8   2.51   8.30   2   0.04   0.12     54     17   11  521
 FDUSB2e   2080   512  2K   FAT   8   2.68   9.85   2   0.16   1.55     13    1.3    0  521
 FDUSB2f   2210   512 X64   FAT   1   1.33   7.72   2   0.06   1.61     32    1.2    8  521
                                  8   2.57   9.28   4   0.11   2.74     35    1.5    9  521
 FDUSB2g   2400   512 V64   FAT   1   2.23   7.52   2   0.06   0.70     34    2.8   10  521
                                  8   2.57   9.95   4   0.11   1.27     37    3.2    9  521

 SDUSB1 #  2400    32 V64   FAT   1   1.18   3.40   2   0.02   0.57    100    3.5   34  521
                                  8   1.23   3.53   4   0.04   0.98    100    4.1   34  521
 SDUSB2 #  2400  2048 V64   FAT   1   4.06  15.14   2   0.05   0.55     40    3.7   13  521
                                  8   9.57  16.74   4   0.11   1.06     38    3.8   13  521

        # AVAST anti-virus enabled
  

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4 to 16 GB Flash Memory

Following are results on two 4 GB Flash Drives with FAT and NTFS formatting, using both 32 bit and 64 bit benchmarks via Windows XP Pro x64 and 64-Bit Vista (V64). Some results using Window 2000 are also shown, where "Optimize For Performance" settings are used. This obtains best performance on writing short files. Other data is with AVAST anti-virus software enabled which mainly affects reading time of small files.

Results provided are the best from two runs. Speeds particularly on writing the 1 MB files can vary a lot. So, differences on a particular drive need to be treaded with care. The second flash drive is faster on large files but particularly on the writing speed of small files. As expected, NTFS results are faster than via FAT formatting on writing small files, with the most noticeable differences on the first drive. Performance using the 32 bit and 64 bit versions of the benchmark are mainly the same. The writing and reading times of small files are much longer via Vista, indicating a higher overhead but this could be due to the chipsets: Vista - Intel 965 chipset, XP x64 - nVidia nForce4.

A 2014 16 GB addition is FDUSB3.0a, a fast USB 3 Flash Drive, that can achieve greater than 100 MB/second on writing large files, with 240 MB/second on reading. At last, it seems that FAT formatting can lead similar small file writing times to NTFS.


                                 Large Files       Small Files         Per File    Delete
 Key        CPU  Size Win Format MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz    MB    & Mode       MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 FDUSB3e   2080  4096  2K   FAT   1   1.62   8.98   2   0.36   1.41      6    1.4    0  521
                                  8   2.49   9.07   4   0.40   2.84     10    1.4    0  521

 FDUSB3f   2210  4096 X64   FAT   1   1.50   9.15   2   0.01   1.66    182    1.2   16  521
                                  8   2.20   9.21   4   0.01   3.00    333    1.3   12  391 *
   64 Bit benchmark         FAT   1   1.68   9.15   2   0.01   1.73    333    1.2   12  401 *
                                  8   2.23   9.17   4   0.01   2.99    333    1.3   12  381 *
 FDUSB3f   2210  4096 X64  NTFS   1   2.27   9.03   2   0.31   1.53      7    1.3    2  521
                                  8   1.95   8.75   4   0.34   2.69     12    1.5    2  521
  64 Bit benchmark         NTFS   1   2.72   8.94   2   0.16   1.36     12    1.5    3  521
                                  8   2.67   9.18   4   0.35   2.11     12    1.9    4  521

 FDUSB3g   2400  4096 V64   FAT   1   1.67   9.10   2   0.01   0.93    182    2.2   16  521
                                  8   2.20   9.21   4   0.01   1.78    308    2.2   12  391 *
  64 Bit benchmark          FAT   1   1.88   9.08   2   0.01   0.92    286    2.2   11  451 *
                                  8   2.19   9.20   4   0.01   1.78    308    2.2   10  401 *
 FDUSB3g   2400  4096 V64  NTFS   1   2.58   8.94   2   0.06   0.93     35    2.1    2  521
                                  8   2.52   9.16   4   0.14   1.69     28    2.4    2  521
  64 Bit benchmark         NTFS   1   1.73   8.90   2   0.08   0.94     27    2.1    3  521
                                  8   2.32   9.16   4   0.14   1.57     28    2.5    3  521

 FDUSB4e   2080  4096  2K   FAT   1   3.38  15.31   2   0.59   1.40      3    1.4    0  521
                                  8   4.21  16.18   4   1.01   2.61      4    1.5    0  521

 FDUSB4f   2210  4096 X64   FAT   1   2.61  15.07   2   0.09   0.80     22    2.5 #  7  521
                                  8   4.00  16.35   4   0.18   1.37     22    2.9 #  7  521
 FDUSB4f   2210  4096 X64   FAT   1   3.42  16.33   2   0.09   1.63     22    1.2    7  521
                                  8   3.53  16.53   4   0.18   3.06     22    1.3    7  521
  64 Bit benchmark          FAT   1   2.02  16.33   2   0.10   1.65     20    1.2    7  521
                                  8   3.64  16.53   4   0.19   3.04     21    1.3    7  521
 FDUSB4f   2210  4096 X64  NTFS   1   2.94  16.31   2   0.37   1.67      5    1.2    1  521
                                  8   3.93  16.12   4   0.66   3.07      6    1.3    1  521
  64 Bit benchmark         NTFS   1   2.65  16.28   2   0.35   1.71      6    1.2    1  521
                                  8   4.00  16.51   4   0.66   3.04      6    1.3    1  521

 FDUSB4g   2400  4096 V64   FAT   1   2.11  15.96   2   0.09   0.73     22    2.8 #  8  521
                                  8   3.67  16.48   4   0.18   1.41     23    2.8 #  8  521
 FDUSB4g   2400  4096 V64   FAT   1   2.77  16.10   2   0.09   0.92     22    2.2    8  521
                                  8   3.55  16.49   4   0.17   1.78     23    2.2    8  521
  64 Bit benchmark          FAT   1   2.63  16.06   2   0.09   0.92     22    2.2    8  521
                                  8   3.52  16.51   4   0.18   1.79     22    2.2    8  521
 FDUSB4g    2400 4096 V64  NTFS   1   3.26  16.15   2   0.19   1.02     10    2.0    2  521
                                  8   3.63  16.54   4   0.36   1.91     11    2.1    2  521
  64 Bit benchmark         NTFS   1   2.52  16.12   2   0.17   1.02     12    2.0    2  521
                                  8   3.63  16.51   4   0.36   1.93     11    2.1    2  521

 FDUSB3.0a 3700 16MB  864   FAT   1   63.2  113.5   2   0.63   1.50    3.2    1.3  0.95 521
 USB 3.0                          2   70.2   75.2   4   1.28   2.97    3.1    1.3
 64 Bit Benchmark                 4   91.6  178.2   8   2.64   6.45    3.0    1.2
                                  8  107.0  162.9  16   4.62  12.66    3.5    1.3
                                 16   99.4  231.7  32   6.70  24.19    4.8    1.3
                                 32   69.4  239.8  64  13.77  44.04    4.6    1.5

 FDUSB3.0a 3700 16MB  864  NTFS   1   78.7  155.5   2   0.56   2.00    3.6    1.0  0.35 521
 USB 3.0                          2   90.4  181.0   4   1.50   3.92    2.7    1.0
 64 Bit Benchmark                 4   66.2  176.9   8   2.17   7.40    3.7    1.1
                                  8   79.2  216.7  16   4.19  12.94    3.8    1.2
                                 16   39.3  235.8  32   5.63  27.18    5.7    1.2
                                 32   35.1  244.4  64  11.41  43.91    5.6    1.5

               # AVAST anti-virus enabled, remainder AV disabled
               * Less than 520 small files written in 2 minute program limit
               Win2K and NTFS format have drive activity after delete time shown
  

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Network Drives

The first six sets of results show that the speed over a local area network between two PCs can vary depending on which is the server, perhaps influenced by its CPU and disk speed. The first two results are via a 10 mbps LAN that can transfer data up to just over 1 MB/sec. The next pair are via a USB 1 connection box where speed is much lower than might be expected. The other results are for LANs at 100 mbps that can transfer at up to 10.3 MB/sec. The final example is with Norton Anti-Virus enabled on the client PC. This appears to impose an overhead of at least 8 milliseconds per file transfer on writing or reading. As usual, speed on transferring small files is much slower than for large ones. Results of 64 bit benchmark are now included, between 64-Bit Vista and XP Pro x64. Some Vista results are slower when disk is on x64 system.


            Remote         Local    Large Files       Small Files        Per File     Delete
 Results    CPU Win Disk   CPU Win  MB  Write   Read  KB  Write   Read  Write   Read  All  No.
 Key        MHz      RPM   MHz           MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 LAN10     2080  2K 7200   450  98   1   0.96   1.04   2   0.26   0.93    7.8    2.1  2.25 521
                    FAT32            2   0.99   1.02   4   0.40   1.93   10.1    2.1
                                     4   0.99   1.02   8   0.53   0.65   15.0   12.3
                                     8   0.99   1.03  16   0.72   0.78   22.3   20.6
                                    16   1.00   1.02  32   0.85   0.92   37.9   34.9
                                    32   1.00   1.03  64   0.93   0.97   68.6   66.0

 LAN10      450  98 7200  2080  2K   1   0.35   0.59   2   0.18   0.30   11.2    6.7  1.18 521
                    FAT32            2   0.35   0.58   4   0.24   0.38   16.9   10.7
                                     4   0.37   0.58   8   0.30   0.47   26.5   17.2
                                     8   0.37   0.58  16   0.33   0.51   48.8   31.6
                                    16   0.37   0.57  32   0.34   0.53   93.6   60.4
                                    32   0.37   0.57  64   0.36   0.55  180.3  115.5

 LANUSB1    400  98 4200  1900  XP   8   0.08   0.16  16   0.07   0.12  222.2  131.1 16.28 521
 LANUSB1   1900  XP 5400   400  98   8   0.47   0.40  16   0.19   0.14   82.5  112.7  8.24 521

 LAN100    1900  XP 5400  2080  2K   1   4.38   9.80   2   0.16   0.91   12.3    2.2  1.10 521
                    NFTS             2   5.44   9.93   4   0.56   1.81    7.1    2.2
                                     4   5.87   9.99   8   0.89   3.01    9.0    2.7
                                     8   5.54  10.03  16   0.91   4.59   17.7    3.5
                                    16   5.98  10.04  32   1.40   6.47   22.9    4.9
                                    32   5.99  10.04  64   2.76   7.39   23.2    8.7

 LAN100    2080  2K 7200  1900  XP   1   9.69   9.57   2   0.36   0.64    5.6    3.1  1.20 521
                    NFTS             2   9.88   9.69   4   0.73   1.22    5.5    3.3
                                     4   9.35   9.50   8   1.16   2.16    6.9    3.7
                                     8   9.48   9.55  16   2.47   3.47    6.5    4.6
                                    16   9.23   9.69  32   3.69   5.32    8.7    6.0
                                    32   9.02   9.67  64   5.67   6.66   11.3	 9.6 

 LAN100    2080  2K 7200  1900  XP   1   9.57   9.53   2   0.50   0.85    4.0    2.4  0.85 521
                    FAT32            2  10.19   9.62   4   0.98   1.68    4.1    2.4
                                     4  10.34   9.67   8   1.66   2.75    4.8    2.9
                                     8  10.05   9.68  16   3.24   4.31    4.9    3.7
                                    16  10.28   9.70  32   4.08   6.01    7.8    5.3
                                    32  10.31   9.69  64   5.73   7.25   11.2    8.8

 LAN 100b  2210 x64 7200  2400 V64   1   4.51   9.83   2   0.32   0.37    6.2    5.4   2.7 521
 64 Bit Benchmark   NTFS             2   5.93   9.99   4   0.64   0.75    6.2    5.4
                                     4   6.71  10.09   8   1.17   1.33    6.8    6.0
                                     8   7.89  10.12  16   2.04   2.44    7.8    6.6
                                    16   9.63  10.13  32   3.52   3.93    9.1    8.1
                                    32  10.26  10.10  64   5.30   5.51   12.1   11.6

 LAN 100c  2210 x64 7200  2400 V64   1   4.35  10.05   2   0.38   0.52    5.3    3.9   2.0 521
 64 Bit Benchmark   NTFS             2   6.25  10.22   4   0.83   0.98    4.8    4.1
 Vista SP1                           4   7.67  10.28   8   1.52   1.77    5.3    4.5
                                     8   8.99  10.32  16   2.39   3.10    6.7    5.2
                                    16   9.47  10.34  32   4.26   4.84    7.5    6.6
                                    32  10.52  10.35  64   6.18   6.47   10.4    9.9

 LAN 100b  2400 V64 7200  2210 x64   1   6.73   9.46   2   0.77   0.74    2.6    2.7   0.9 521
 64 Bit Benchmark   NTFS             2   7.57  10.02   4   1.55   1.56    2.6    2.6
                                     4   8.27  10.16   8   2.51   2.64    3.2    3.0
                                     8   9.76  10.26  16   4.40   4.25    3.6    3.8
                                    16  10.12  10.31  32   6.24   5.89    5.1    5.4
                                    32  10.65  10.34  64   7.73   7.15    8.3    9.0

 LAN 100c  2400 V64 7200  2210 x64   1   6.09  10.13   2   0.50   0.50    4.0    4.0   1.8 521
 64 Bit Benchmark   NTFS             2   6.73  10.26   4   0.96   0.98    4.2    4.1
 Vista SP1                           4   8.47  10.33   8   1.73   1.81    4.6    4.4
                                     8   8.52  10.36  16   2.99   3.11    5.4    5.1
                                    16   8.99  10.38  32   4.70   4.85    6.8    6.6
                                    32   9.55  10.38  64   6.55   6.43    9.8   10.0

 LAN100    2080  2K 7200  1900  XP   1   9.12   8.31   2   0.15   0.17   13.2   12.0  0.95 521
                    FAT32 +NAV       2   9.75   8.90   4   0.32   0.30   12.7   13.2
                                     4  10.16   9.30   8   0.60   0.52   13.3   15.4
                                     8  10.29   9.35  16   1.19   0.87   13.4   18.3
                                    16  10.19   9.51  32   1.95   1.51   16.4   21.2
                                    32  10.23   9.53  64   3.25   2.57   19.7   24.9

 WiFi01    1900 V32 5400  1900  XP   1   3.01   2.97   2   0.02   0.24  105.7    8.2 11.67 521
 56mbps    +AVG     NTFS  +AVG       2   3.15   3.06   4   0.02   0.51  195.0    7.7
                                     4   3.18   3.09   8   0.04   0.86  190.6    9.1
                                     8   3.23   2.99  16   0.10   1.42  162.0   11.0
                                    16   3.33   2.72  32   0.18   1.88  174.8   16.6

 WiFi02    1830 V32 5400  1900  XP   1   2.60   2.79   2   0.19   0.28   10.5    7.1   4.4 521
 56mbps    +AVG     NTFS  +AVG       2   2.73   2.78   4   0.36   0.54   11.1    7.4
                                     4   2.75   2.74   8   0.62   0.86   12.9    9.3
                                     8   2.77   2.72  16   1.05   1.37   15.2   11.7
                                    16   2.78   2.71  32   1.47   1.84   21.8   17.4

  

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Network Drives - Gigabit LAN

Following are results from three systems connected by a gigabit LAN. Here, maximum data transfer speed can be limited by that of the hard disk used. The tests were run with AVAST anti-virus active but other tests showed that this made a difference of less than 0.5 milliseconds per file read or written. Of particular note, speed on writing large files, in the range shown, is generally slower than above examples of disks connected by USB. This appears to be due to a large overhead for opening a single file for writing. Minimum time to write and read small files is also slower, this being based on the average time for 520 files.


 All 64 Bit Benchmark

            Remote         Local    Large Files       Small Files        Per File     Delete
 Results    CPU Win Disk   CPU Win  MB  Write   Read  KB  Write   Read  Write   Read  All  No.
 Key        MHz      RPM   MHz           MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 LAN1000a  2400 V64 7200  3000 764   1    8.5   24.1   2   0.76   0.84    2.6    2.4  0.8  521
 AVAST              NTFS             2   10.2   23.5   4   1.42   1.78    2.8    2.2
                                     4   18.5   25.9   8   2.84   2.34    2.8    3.4
                                     8   24.4   34.1  16   5.29   4.65    3.0    3.4
                                    16   29.8   38.9  32   9.87   9.91    3.2    3.2
                                    32   36.1   41.8  64  14.78  12.27    4.3    5.2
 
 LAN1000a  3000 764 5400  2400 V64   1   15.9   50.7   2   0.43   0.58    4.6    3.4  1.6  521
 AVAST              NTFS             2   20.2   57.6   4   0.86   1.15    4.6    3.5
                                     4   32.7   78.3   8   1.88   2.40    4.3    3.3
                                     8   37.0   27.8  16   3.48   4.42    4.6    3.6
                                    16   43.4   49.3  32   6.65   7.92    4.8    4.0
                                    32   50.8   41.7  64  11.27  12.51    5.7    5.1

 LAN1000b  2211 X64 7200  3000 764   1    7.8   35.9   2   0.36   0.67    5.6    3.0   1.0 521
 AVAST              NTFS             2    9.7   39.9   4   0.98   1.45    4.1    2.8
                                     4   13.3   38.4   8   1.57   2.73    5.1    2.9
                                     8   15.5   40.9  16   3.56   5.12    4.5    3.1
                                    16   16.7   41.7  32   5.90   9.66    5.4    3.3
                                    32   21.9   42.9  64   7.33  14.74    8.7    4.3

 LAN1000b  3000 764 5400  2211 X64   1   10.6   47.9   2   0.32   0.40    6.3    5.1   2.7 521
 AVAST              NTFS             2   11.5   46.6   4   0.70   0.86    5.7    4.6
                                     4   18.8   53.3   8   1.35   1.46    5.9    5.5
                                     8   23.4   55.6  16   2.60   3.33    6.1    4.8
                                    16   27.1   53.5  32   4.49   5.27    7.1    6.1
                                    32   24.0   51.6  64   9.44  10.17    6.8    6.3
 
 LAN1000c  2400 V64 7200  2211 X64   1    9.0   53.4   2   0.54   0.53    3.7    3.8   1.7 521
 AVAST              NTFS             2   11.2   57.6   4   1.02   1.08    3.9    3.7
                                     4   14.5   60.1   8   2.08   2.15    3.8    3.7
                                     8   17.4   61.8  16   3.96   4.28    4.0    3.7
                                    16   19.7   62.3  32   7.20   8.39    4.4    3.8
                                    32   22.4   61.9  64  13.28  13.93    4.8    4.6
 
 LAN1000c  2211 X64 7200  2400 V64   1    6.8   48.0   2   0.53   0.68    3.8    2.9   1.7 521
 AVAST              NTFS             2    9.9   50.6   4   1.05   1.30    3.8    3.1
                                     4   12.6   52.0   8   2.03   2.59    4.0    3.1
                                     8   16.3   50.8  16   3.81   5.03    4.2    3.2
                                    16   18.1   50.5  32   6.96   9.11    4.6    3.5
                                    32   18.7   53.1  64  10.74  15.47    6.0    4.1

  

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CD and DVD Drives

Following are some examples of read only speeds obtained via the benchmark. Those on CDs are mainly for reading the same file. DVD Reading speeds include one where Windows switched from DMA to PIO mode, probably after encountering reading errors.

In principle, the benchmark can run the write/read tests on CDRW and DVDRW discs, but only if the appropriate packet writing software is available. Some CDRW and DVDRW results are shown. The test via Windows 98 showed impossibly fast reading results, probably reading from a buffer or cache somewhere. The other example shows varying speeds on writing/reading the same sized files.


      MB/sec
      0.59    CD  4x Pentium 199 MHz, Win95 (1995)
      0.97    CD  6x Iomega ZipCD USB 1 Drive, Win98, (2001)
      1.17 #  CD  8x speed, Pentium Pro 200 MHz, WinNT4 (1996)
      1.96    CD 16x speed, Pentium MMX 200 MHz, Win95, (1997)
      2.64 #  CD 24x speed, CDRW/DVDR Laptop, AMD XP 2400+, WinXP, (2003) 
      2.53 #  CD 24x speed, Laptop Celeron 400 MHz, Win98, (1999) 
      4.93 #  CD 48x speed, CD/DVDR, P4 1900 MHz, WinXP, (2001)
      4.39 #  CD 48x speed CD/DVDRW Sony, AMD XP 2.2 GHz, Win64 (2005)
      4.38 #  As above 64 bit version
      5.06 #  CD 48x speed, CD/DVDRW Liteon, P4 1900 MHz, WinXP, (2007)
      5.75 #  CD 52x speed, Duron 750 MHz, Win2K, (2000) 
           #  Same 197 MB file

      Mainly 1GB Files
      5.12    Laptop CD/CDRW/DVDR 8x drive, AMD XP 2400+, WinXP, (2003)
      9.83    CD/DVDR 16x, P4 1900 MHz, WinXP, (2001) **
      2.71    CD/DVDR 16x, P4 1900 MHz, WinXP, PIO Mode, (2001)
     10.64    CD/DVDR 16x, AMD XP 2.2 GHz, Win64 (2005) ** same file 1
     16.55    CD/DVDR 16x, AMD XP 2.2 GHz, Win64 (2005) ** file 4 same DVD
     10.90    CD/DVDR 20x, P4 1.9 GHz, Liteon LH-20A1H, WinXP (2007) **1
     13.63    CD/DVDR 20x, P4 1.9 GHz, Liteon LH-20A1H, WinXP (2007) **2
     16.93    CD/DVDR 20x, P4 1.9 GHz, Liteon LH-20A1H, WinXP (2007) **3
     19.32    CD/DVDR 20x, P4 1.9 GHz, Liteon LH-20A1H, WinXP (2007) **4
      6.09    As above DVD+RW 8x, disc speed? 1 GB (copy speed 2.48 MB/sec)
      6.21    As above DVD+RW 8x, other file  1 GB added (copy speed 2.35 MB/sec)
      6.19    As above DVD+RW 8x, other file  1 GB added (copy speed 2.26 MB/sec)


                         Large Files       Small Files         Per File    Delete
 Key        CPU  Win     MB  Write   Read  KB  Write   Read  Write   Read  All  No.
            MHz               MB/s   MB/s       MB/s   MB/s  msecs  msecs  Secs

 CDRW disc 4x
 CDRWUSB1b  750   98      1    0.9  147.5#  2   0.17   5.77#  11.7    0.3   0.1 521
                          8    0.2    0.5  16   0.45   0.71   35.4   22.6
 CDRW10x1c 1800   XP      8    0.4    1.5  16   0.23   2.13   71.1    7.5   0.1 521
                          8    0.6    0.4  16   0.33   1.82   48.2    8.8
 CDRW32x1  1900   XP      8    0.4    0.5  16   0.48   1.01   33.3   15.9   2.5 521
 CDRW32x1                16    0.4    0.7  32   0.48   1.84   66.5   17.4
                                         # Data cached in buffer?

 DVD+RW disc rating?
 DVDRWx8   1900   XP      1    0.2    1.0   2   0.17   0.57   11.8    3.5   2.3 521
 DVDRWx8                  2    3.5    1.8   4   0.38   1.08   10.7    3.7
 DVDRWx8                  4    1.9    1.5   8   0.63   1.90   12.6    4.2
 DVDRWx8                  8    2.4    2.7  16   1.41   2.99   11.4    5.4
 DVDRWx8                 16    2.2    2.9  32   2.35   2.70   13.6   11.9
 DVDRWx8                 32    2.6    2.7  64   2.54   5.04   25.2   12.7
 Later with added files before test
 DVDRWx8                 32    1.8    2.7  64   3.09   5.08   20.7   12.6   2.4 521
 DVDRWx8   1 GB used     32    1.9    2.8  64   2.38   5.11   26.9   12.5
 DVDRWx8   2 GB Used     32    1.8    2.9  64   2.34   4.52   27.3   14.2
 DVDRWx8   3 GB Used     32    1.6    2.9  64   2.20   4.67   29.2   13.7
  

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Configuration Key

Code       Configuration

 FloppyD1   Floppy Disk, Duron 750 MHz, Win98
 FloppyD2   Floppy disk, Pentium 4 1.9 GHz, WinXP
 Disk486    80486DX2 66.7 MHz, 3600 RPM disk, Win95 (1994)
 DiskSea0   Pentium 100 MHz, Seagate ST5850A, 3600 RPM Disk, ISA bus not IDE, Win95 (1995)
 DiskQua0   Pentium Pro 200 MHz, Quantum FB TM2100A, 2.1GB, 4500 RPM disk, NT 4.0, (1995)
 DiskQua1   Pentium MMX 200 MHz, Quantum FB ST 2.1AT, 2.1GB, 5400 RPM disk, Win95, (1997)
 DiskLap0   Celeron 400 MHz Laptop, Fujitsu MFH 2043, 4.3 GB 4200 RPM disk, Win98, (1999)
 DiskLap1   Acer 5520G Laptop, Turion 64 X2 1900 MHz, WD2500BEVS disk 5400 RPM, Vista (2007)
 DiskLap2   Acer 7720G, Core 2 Duo 1.83 Ghz, Hitachi 5400 RPM disk, Vista 32 Bit (2008)
 DiskLap3   Compaq 6720s, Celeron 550 2.0 Ghz, Fujitsu 5400 RMP Disk, Vista Home Basic (2008)
 DiskMax0   Celeron A 450MHz, Maxtor DiamondMax Plus 2500 7200 RPM disk, Win98, (1999)
 DiskMax1   Duron 750 MHz, Maxtor DM Plus 40 53078H6, ATA100, 7200 RPM, Win2K/98(2000)
 DiskSea1   Pentium 4 1900 MHz, Seagate ST340810A 40GB 5400 RPM disk, WinXP,  (2001)
 DiskSea2   Core 2 Duo 2400 MHz, Seagate ST3320620AS SATA Disk, 16 MB buffer, WinXP (2006)
 DiskSea3   Core 2 Duo 2400 MHz, Seagate ST3400633AS SATA Disk, 16 MB, Vista 64 bit (2007)
 DiskSea3   64-Bit Vista SP1
 DiskSea4   As DiskSea3 but Seagate ST3320613AS in Akasa 1.5 Gb/sec eSATA enclosure (2009)
 DiskHit2   Pentium 4 1900 MHz, replacement Hitachi 7K80, 80GB, 7200 RPM, (2006) 
 DiskHit1   Athlon XP 2080 MHz, Hitachi 7K250, ATA100, 7200 RPM disk, Win2K/98 (2004)
 DiskWD0    Pentium 4E 3000 MHz, WD2000JD 7200 RPM 200 GB SATA disk, WinXP (2004)
 DiskMax2   Athlon 64 2210 MHz, Maxtor 300 GB 7200 RPM SATA disk, WinXP Pro x64 (2005)
 DiskWDG1   Phenom II X4 3.0 GHz, 640 GB WD 5400 RPM WD6400AACS disk, 64-Bit Windows 7 (2009) 
 DiskWDB1   Core i7-4820K 3.7 GHz, 1 TB WD1003FZEX SATA 6 Gb/s, 64MB cache, Windows 8 (2014)
   

 DiskUSB2a  Pentium 4 1900 MHz 250 GB Freecom USB2 Disk, 7200 RPM, 8 MB buffer, WinXP (2001)
 DiskUSB2c  AMD XP 2600+ 2.08 GHz, Freecom USB2 Disk 7200 RPM, 8 MB buffer, Win2K (2004)
 DiskUSB2b  Athlon 64 2.21 GHz, Freecom USB2 Disk 7200 RPM, 8 MB buffer, WinXP/x64 (2005)
 DiskUSB2d  Core 2 Duo 2.4 GHz, Freecom USB2 Disk 7200 RPM, 8 MB buffer, 64-Bit Vista (2007)
 DiskUSB3a  Core i7-4820K 3.7 GHz, Seagate Expansion  SRD00F1, 1TB USB 3.0, 5400 RPM (2014)

 SSDSam1    Samsung Series 9 13.3-Inch Laptop, 1.6 GHz Core i5-2467M CPU, 128 GB SSD,
            64-Bit Windows 7 (2012) 

 Compact Flash USB 1 and 2 (x)- Same end letter other devices
 Mostly via an Acrox Compact Flash Card Reader

 CFUSBxa    Celeron 400 MHz Laptop, Win98
 CFUSBxb    Duron 750 MHz, Win2K and Win98
 CFUSBxc    Athlon XP Barton 1800 MHz Laptop, WinXP
 CFUSBxd    Pentium 4 1900 MHz, WinXP
 CFUSBxe    Athlon XP 2080 MHz, Win2K and Win98
 CFUSBxf    Athlon 64 2210 MHz, WinXP x64
 CFinBox    Pentium 4E 3000 MHz, Built-in Card Reader, WinXP
 CFLPPort   LP port card reader
 CFPCMCIA   PCMCIA Compact Flash adapter

 FD         d, e, f as above, g Core 2 Duo 2400 MHz, 64-Bit Vista
 FDUSB2     Disgo Lite USB Flash Drive 512 MB
 FDUSB3     Staples USB Flash Drive 4 GB
 FDUSB4     SanDisk Cruzer Micro 4 GB, Enhanced for ReadyBoost
 FDUSB3.0a  Core i7-4820K 3.7 GHz, 32 GB SanDisk Extreme USB 3.0 Flash Drive (2013)

 SD         Core 2 Duo 2400 MHz, 64-Bit Vista 
 SDUSB1     32 MB supplied with Canon camera (2009)
 SBUSB2     2 GB SanDisk Ultra II 110x speed rating (2009)

 CDRWUSB1b  Iomega ZipCD USB 1 Drive (6 x 4 x 4)
 CDRW10x1c  CDRW 10x speed, CDRW/DVDR Laptop
 CDRW32x1   CDRW 32x, disc 4x, Pentium 4 1.9 GHz, Liteon LH-20A1H, Nero InCD 5, WinXP
 DVDRWx8    DVD+RW 8x, disc?,  Pentium 4 1.9 GHz, Liteon LH-20A1H, Nero InCD 5, WinXP

 Local Area Network 10, 100 and and 1000 Mbits/sec
 LAN10      Athlon XP 2080 MHz, Celeron A 450MHz
 LAN100     Athlon XP 2080 MHz, Pentium 4 1900 MHz
 LAN100b    Core 2 Duo 2400 MHz 64-Bit Vista, Athlon 64 X2 XP x64
 LAN100c    Core 2 Duo 2400 MHz 64-Bit Vista SP1, Athlon 64 X2 XP x64
 LAN1000a   Core 2 Duo 2400 MHz 64-Bit Vista SP1, Phenom II, Windows 7-64
 LAN1000b   Phenom II, Windows 7-64, Athlon 64 X2 XP x64
 LAN1000c   Core 2 Duo 2400 MHz 64-Bit Vista SP1, Athlon 64 X2 XP x64

 LANUSB1    Belkin USB 1 Adapter, Pentium 4 1900 MHz,  Celeron 400 MHz Laptop

 WiFi 56 Kbps
 WiFi01     Acer 5520G Laptop, Turion 64 X2 1900 MHz, WD2500BEVS disk 5400 RPM, Vista (2007)
            To DiskHit2 Pentium 4 1900 MHz above
 WiFi02     DiskLap2 PC above to DiskHit2 Pentium 4 1900 MHz (2008)

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