SSDs slower in bootcamp

Discussion in 'Windows, Linux & Others on the Mac' started by danielplainview, Apr 26, 2013.

  1. danielplainview macrumors newbie

    Apr 16, 2013
    I've heard that SSDs do not function as fast in bootcamp Windows 7 compared to running in Mac OS X. Is this still true?

  2. joec1101 macrumors 6502a

    Jun 29, 2010
    So Cal, USA
    You've heard wrong. This was never true. :confused:

    Windows 7 runs lightning fast in bootcamp, *especially* with an SSD.
  3. danielplainview thread starter macrumors newbie

    Apr 16, 2013
    hmm it was just that I heard SSDs did not run in AHCI mode (like they do in OS X) and thus the read and write speeds are slower.
  4. iMacDragon macrumors 68000


    Oct 18, 2008
    This used to be the case, but from 2011 models onwards I believe they now operate in AHCI.

    Certainly 2012 RMBP does. I can't recall for sure if my 2011 model did, but I think it did.
  5. MJL macrumors 6502a

    Jun 25, 2011
    Mac mini 2010 server and Mac mini 2011: Intel X25M-G2 and pulled Toshiba SSD from a Macbook Pro (2011) run just as fast in non-AHCI as in AHCI.

    Samsung 830: A big difference between AHCI and non-AHCI.

    In order to run in AHCI you have to do some juggling in Terminal and make some changes in the windows registry.

    The above is for Windows 7 - I do not know about Windows 8.
  6. monkeybagel macrumors 65816

    Jul 24, 2011
    United States
    Just as a reference point - the OEM 512GB SSD in my 2012 Mac Pro scores a 7.2 on the WEI in Windows 7 x64 Enterprise. Which is nowhere near where the SATA3 would get a 7.9, but it is still very fast. Machine is very fast and responsive, and TRIM is enabled automatically by Windows 7.
  7. MJL macrumors 6502a

    Jun 25, 2011
    7.9 with a 128Gb Samsung 830 on the base Mac mini 2011

    Attached Files:

  8. saturnotaku macrumors 68000

    Mar 4, 2013
    When Boot Camp 5.0 was released for 2011 models, the support software included updated logic board chipset drivers that installed in AHCI mode.

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