USB3.0 Adapter SSD & HDD Speed Tests

Discussion in 'Mac Accessories' started by Orlandoech, Aug 16, 2012.

  1. Orlandoech macrumors 68040

    Orlandoech

    Joined:
    Jun 2, 2011
    Location:
    Salt Lake City, UT
    #1
    So I have a new rMBP and I wanted some fast external storage but DIDN'T want to spend the money on Thunderbolt.

    I had an extra Seagate Momentus 750GB HDD (SATA 3.0Gbs/16MB Cache/7200RPM) and a Corsair Force GT SSD that I coupled with a BYTECC HD3-S3U3 USB3.0 External Enclosure and wanted to share the results.

    The tests are done with the Blackmagic Disk Speed app, a BASE model 2012 Macbook Pro Retina (2.3/8GB/256GB), 18" USB3.0 cord connected to the BYTEC USB3.0 external enclosure.

    [​IMG]


    Corsair Force GT 240GB SSD

    First Test: Copy/Paste 4.35GB .dmg file to OS to SSD
    Time: 19 seconds

    Second Test: Disk Speed Test
    Write: 225.5 MB/s
    Read: 254.2 MB/s


    [​IMG]



    Seagate Momentus HDD

    First Test: Copy/Paste 4.35GB .dmg file to OS to SSD
    Time: 39 seconds

    Second Test: Disk Speed Test
    Write: 112.4 MB/s
    Read: 114.1 MB/s


    [​IMG]


    For ThunderBolt tests check this awesome thread out which inspired my thread. http://forums.macrumors.com/showthread.php?t=1421396
     
  2. WesCole macrumors 6502a

    Joined:
    Jul 1, 2010
    Location:
    Texas
    #2
    Those results are pretty interesting. I believe there is more latency with USB3 than Thunderbolt, but I am not sure how it would affect perceived speed. Have you tried running OS X with the SSD? I am curious how that would work.
     
  3. Orlandoech thread starter macrumors 68040

    Orlandoech

    Joined:
    Jun 2, 2011
    Location:
    Salt Lake City, UT
    #3
    Running OSX on the SSD via USB3? No I havent.
    Running OSX on the SSD installed on my rMBP? No because I cannot install an SSD.

    I wasnt sure what you meant, so I answered both.
     
  4. WesCole macrumors 6502a

    Joined:
    Jul 1, 2010
    Location:
    Texas
    #4
    I was talking about OS X via USB. I run it via Thunderbolt, so I was just curious.
     
  5. Orlandoech thread starter macrumors 68040

    Orlandoech

    Joined:
    Jun 2, 2011
    Location:
    Salt Lake City, UT
    #5
    No but I will give it a shot shortly.
     
  6. Orlandoech thread starter macrumors 68040

    Orlandoech

    Joined:
    Jun 2, 2011
    Location:
    Salt Lake City, UT
    #6
    It works flawlessly. Installed Mtn Lion via USB to the Corsair SSD inside the USB3 enclosure. Also re-ran Disk Speed test, results didnt vary much but were slightly faster.

    Screenshot attached.
     

    Attached Files:

Share This Page