dd benchmarks

Since some cards are too small to use conventional modern benchmark software, here are some numbers using dd along with comparable cards for context.

The write command is dd if=/dev/random of=/dev/rdisk4 count=8192, and the read command is dd if=/dev/rdisk4 of=/dev/null. Test system us MacOS 12.6 with a “Genesys Logic” USB2.0 CF reader

dd benchmark chart

Name Read (KB/Sec) Write (KB/Sec) Notes
PNY 8MB VersaCard P-CF008-PA 591 219  
Lexar 8MB 4x-rated “USB Enabled” (no model number, 2000 model) 882 882  
32MB Cisco (CCF032JCVS6MC01H) 832 811  
256MB Sandisk SDCFJ (2004 model) 774 282  
Lexar 64MB 12x-rated “USB Enabled” (P/N: 2175, 2001 model) 742 691 2
TwinMOS 128MB Ultra-X 70x-rated 974 1,720 1, 2

[1:] Yes, 1.7MB/sec, really. I ran this with counts up to 32768. [2:] Modern benchmark also available

Cards

Cisco

Branded as “Cisco”, for routers/switches. If the IC manufacturer is known it will be noted.

32MB Cisco (CCF032JCVS6MC01H)

See dd benchmarks.

Cisco 128MB (THNCF128MDGICBD)

AmorphousDiskMark 4.0

AmorphousDiskMark 4.0

Lexar

Lexar 8MB 4x-rated “USB Enabled” (no model number, 2000 model)

See dd benchmarks.

Lexar 64MB 12x-rated “USB Enabled” (P/N: 2175, 2001 model)

Untitled

Also see dd benchmarks.

PNY

PNY 8MB VersaCard P-CF008-PA

See dd benchmarks.

Sandisk

Sandisk 256MB SDCFJ (2004 model)

See dd benchmarks.

TwinMOS

TwinMOS 128MB Ultra-X 70x-rated

AmorphousDiskMark 4.0

AmorphousDiskMark 4.0

Also see dd benchmarks.

Last updated 2024-02-06