How fast is your SSD, and when did you buy your MacBook Air?

Discussion in 'MacBook Air' started by KPOM, Feb 6, 2011.

  1. KPOM, Feb 6, 2011
    Last edited: Feb 6, 2011

    macrumors G4

    Joined:
    Oct 23, 2010
    #1
    DeBilbao's recent review of the MacBook Air raised some interesting disk speed results. Specifically, he is getting read and write speeds about 12-20% faster than what the rest of us are seeing.

    He downloaded Aja System Test (http://www.aja.com/products/software/) and ran the disk test with a 4GB file at the 1920x1080 and 10 bit video frame setting. Most of us are getting write speeds around 184 MB/s and read speeds of about 208 MB/s. He's getting 207 MB/s and 250 MB/s, respectively.

    I'm wondering if Apple has made a running change to the MacBook Air (Rev D). I propose an informal survey. First, what are your read/write speeds running this same test? Second, when did you purchase your MacBook Air? Third, what is your Apple SSD revision number?


    I'll start:

    Read: 208 MB/s
    Write: 184.3 MB/s

    Purchased: November 2010

    Revision: CJAA0201
     
  2. Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    I ran it yesterday and got similar results to yours. The SSD is the same revision as yours. Got it in late November.
     
  3. macrumors member

    Joined:
    Oct 10, 2003
    #3
    Faster

    Mine are as follows write: 211.8MB/S read:263.3 MB/S 35gb of 128gb used
    purchased jan 31st 2011 revision is AXM09A1Q
     
  4. macrumors newbie

    Joined:
    Dec 2, 2010
    #4
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

    How do I find out this info?
     
  5. Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #5
    Click  > About this Mac > More info > Serial-ATA > Select the SSD > Revision

    Too lazy to check that but I think that's how you find it. As for benchmarking the SSD, use the AJA System Test linked in the first post.
     
  6. macrumors 6502a

    gdeputy

    Joined:
    Jul 23, 2008
    Location:
    New York
    #6
    I got 184/205. Interesting! I should add I bought mine on like november 24th i believe.
     
  7. macrumors regular

    drison

    Joined:
    Apr 30, 2005
    Location:
    Chicago
    #7
    Revision: CJAA0201

    184/204
     
  8. macrumors newbie

    Joined:
    Dec 2, 2005
    Location:
    Iowa
    #8
    Cjaa0201
    w 181.6
    r 206.4
     
  9. macrumors 68020

    jamesryanbell

    Joined:
    Mar 17, 2009
    #9
    This is the THIRD time I've read about later models being faster (SSD). I think there's something to this.
     
  10. macrumors 68000

    rkaufmann87

    Joined:
    Dec 17, 2009
    Location:
    Folsom, CA
    #10
    Read: 204.0 MB/s
    Write: 176.9 /MB/S

    Purchased January 2011 (think it was old stock from ABT)

    Revision: CJAA0201
     
  11. samiznaetekto, Feb 6, 2011
    Last edited by a moderator: Feb 21, 2011

    macrumors 65816

    Joined:
    Dec 26, 2009
    #11
    Similar results for CJAA0201. January 2011 from MacMall.

    Can we be more specific? :D 11.6" or 13"? 64, 128, or 256GB? SSD model? How much space used/left?

    Mine: 11.6", 128GB, APPLE SSD TS128C, 68 used/53 available.
     
  12. macrumors 6502a

    Joined:
    Nov 20, 2010
    #12
    Yes, this is important. Larger capacity SSD models tend to be faster than smaller capacity ones. This could be why the speed is varying...
     
  13. macrumors newbie

    Joined:
    Dec 2, 2005
    Location:
    Iowa
    #13
    13" MBA 2.13 Ghz - 4 GB Ram - 256GB SSD
    149 Used
    101 Avalable
    Cjaa0201
    W 181.6
    R 206.4
    Apple Store Des Moines 1/30/11
     
  14. Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #14
    Actually, the capacity is pretty irrelevant. When it comes to HDs, that is true because bigger capacity means the drive is denser (assuming they are the same form factor), meaning that more data can be read or written each time the HD spins.

    However, this does not apply to SSDs since they don't spin. 40GB SSD is as fast as 480GB one with the same controller. Amount of NANDs may affect the speed but usually they don't.
     
  15. thread starter macrumors G4

    Joined:
    Oct 23, 2010
    #15

    It shouldn't make too much of a difference, since I think each version uses the same number of channels, but in any case, I have a 256GB SSD with over 50% free right now.
     
  16. macrumors 65816

    Joined:
    Dec 26, 2009
    #16
    Maybe, not much difference in terms of speed, but with more detailed info we can track down which models of MBA got new revision of SSD.
     
  17. Beaverman3001, Feb 6, 2011
    Last edited: Feb 6, 2011

    macrumors 6502

    Joined:
    May 20, 2010
    #17
    181 write, 209 read. revision CJAA0201

    Bought in January from MacMall, prob old stock from original release.
     
  18. macrumors 6502

    Joined:
    Apr 16, 2010
    #18
    i get 167 write and 196 read :(
     
  19. macrumors newbie

    Joined:
    Mar 11, 2009
    Location:
    Belgium
    #19
    write 204.6
    read 246.3

    rev AXM09A1Q

    bought yesterday
     
  20. macrumors newbie

    Joined:
    Feb 6, 2011
    #20
    Do you guys know if you can install a Vertex2 2.5 inch SSD in a MBA?
     
  21. macrumors 6502

    Joined:
    May 3, 2010
    #21
    [​IMG]

    [​IMG]

    Xmas 2010 purchase.
     
  22. Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #22
    Hmmm.. I'm starting to wonder if the SSD in newer MBAs is made by Samsung instead of Toshiba. In the past, Apple has used Samsung SSDs which were reported as "APPLE SSD SM128" in OS X. The new ones are SM128C now. It would make sense if SM stood for Samsung. Toshiba SSDs are "APPLE SSD TS128C" so again, it's logical if TS stands for Toshiba.

    If I had to guess, the SSD in newer MBAs is Samsung 470-series as that has speeds of 250/220 MB/s, which makes sense when looking at the benchmarks. Apart from the speed differences, it looks like the newer ones support Native Command Queuing while older ones don't.
     
  23. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #23
    how very logical of you :D are there any negatives to using the samsung chips as opposed to toshiba? i was always very skeptical of them :/
     
  24. Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #24
    Well, the old Samsungs suffered from pretty heavy degradation issues or so I've heard but that was something like 2008. A lot has happened in SSD world since that.
     
  25. macrumors 68040

    Goldfrapp

    Joined:
    Jul 31, 2005
    #25
    Ultimate MacBook Air 13 (bought yesterday):

    180.9 / 207.7

    Revision: CJAA0201

    So it turns out I was sold an older revision, right? That's why it's slower, right? I'm mad!!! :mad::mad::mad:

    Should I have asked the sales person to pull out the latest revision? Is it even possible to identify one? :(
     

Share This Page