S/W to benchmark SD cards?

Discussion in 'Digital Photography' started by Chupa Chupa, Mar 27, 2011.

  1. Chupa Chupa macrumors G5

    Chupa Chupa

    Joined:
    Jul 16, 2002
    #1
    What OS X app would be good to benchmark SD cards? I have a couple different Class 10s and I'm curious what their actual speeds are.
     
  2. jabbott macrumors 6502

    Joined:
    Nov 23, 2009
    #2
    You could try Xbench... It's old but it works. Just disable all benchmarks except for Disk Test, and set the volume to your SD card. I just ran it on my iMac i7 with a Transcend 32GB SD Class 6 card and got the following results:

    Disk Test 1.51
    Sequential 19.91
    Uncached Write 17.45 10.71 MB/sec [4K blocks]
    Uncached Write 16.48 9.32 MB/sec [256K blocks]
    Uncached Read 17.68 5.18 MB/sec [4K blocks]
    Uncached Read 37.93 19.06 MB/sec [256K blocks]​
    Random 0.79
    Uncached Write 0.21 0.02 MB/sec [4K blocks]
    Uncached Write 3.48 1.12 MB/sec [256K blocks]
    Uncached Read 671.88 4.76 MB/sec [4K blocks]
    Uncached Read 102.40 19.00 MB/sec [256K blocks]​
     

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