Apple SSD Performance: 512 vs 256 vs 128

Discussion in 'MacBook Pro' started by Avery1, Apr 22, 2011.

  1. Avery1 macrumors regular

    Joined:
    Mar 14, 2010
    #1
    I see quite a few performance specs for the 2011 MPB Apple 128 GB SSD, but very few references for the 256 GB, and more specifically, the 512 GB SSDs.

    Can anyone point me to some stats?
     
  2. calderone macrumors 68040

    calderone

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    Aug 28, 2009
    Location:
    Seattle
  3. Avery1 thread starter macrumors regular

    Joined:
    Mar 14, 2010
    #3
    Awesome. Thanks for posting!

    I was surprised to see the 512 tested better in most areas than the 256. I compared to the 128 values at http://www.barefeats.com/mbps02.html and if we were talking apples-apples, it looks like the 256/512 do better than the 128 on small random files, but not as well on large sequential files.

    However, I'm not very confident these tests are fully comparable. Any chance you have specs on the 128?
     
  4. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #4
    All the drives Apple uses are from the same Toshiba Series.

    128GB
    THNS128GG4BBAA

    256GB
    THNS256GG8BBAA

    512GB
    THNS512GG8BBAA
     
  5. NickZac macrumors 68000

    NickZac

    Joined:
    Dec 11, 2010
    #5
    IIRC, the Toshiba drive used benches the best overall figures with the (edit I meant 128 and not 256; sorry!). My 128 runs similar

    Disk Test 319.42
    Sequential 211.74
    Uncached Write 331.28 203.40 MB/sec [4K blocks]
    Uncached Write 287.27 162.54 MB/sec [256K blocks]
    Uncached Read 103.74 30.36 MB/sec [4K blocks]
    Uncached Read 363.37 182.63 MB/sec [256K blocks]
    Random 649.96
    Uncached Write 418.20 44.27 MB/sec [4K blocks]
    Uncached Write 602.45 192.87 MB/sec [256K blocks]
    Uncached Read 2143.53 15.19 MB/sec [4K blocks]
    Uncached Read 611.01 113.38 MB/sec [256K blocks]



    Keep in mind that benchmarks for SSDs are misleading, and the speed of a factory SSD to an aftermarket SSD is even more confusing.
     
  6. Avery1 thread starter macrumors regular

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    Mar 14, 2010

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