Macbook Nvidia (White) Early '09 vs Mid '09 RAM speed

Discussion in 'MacBook' started by iAlex, Sep 25, 2009.

  1. iAlex macrumors member

    iAlex

    Joined:
    Mar 10, 2006
    Location:
    FEMA District X
    #1
    I've searched but could not find a thread that addresses this (no flames). Both the Early 09' and Mid '09 share the same bus speed but the RAM speed is different 667MHz v 800MHz. I assume the Early '09 will accept the faster DDR2 800Mhz RAM from the Mid '09, but will it run at the faster speed? Is this a firmware issue as the Nvida Macmini (same bus speed) uses DDR3 @ 1067MHz? This seems like a bummer of bottleneck in the bus. :confused:
     
  2. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #2
    The early '09 should both accept the 800mhz RAM, and run that RAM at 800mhz if installed.

    The 1066mhz DDR3 setup in the Unibody MacBook and MacMini etc is just a faster FSB setup with different memory slots (on the surface). It's not a firmware/software issue.

    Don't worry, performance-wise, you'll probably never notice a difference between 667 and 800mhz, and for that matter from 800mhz DDR2 to 1066mhz DDR3 (it's ~5% performance difference)
     

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