Is early 2011 macbook pro ram ok for mid 2009 MBP

Discussion in 'MacBook Pro' started by irobbiemcc, May 8, 2012.

  1. irobbiemcc macrumors newbie

    Joined:
    Oct 19, 2011
    Location:
    Byron Bay
    #1
    Hey All,

    I have recently upgraded my early 2011 MBP and was wondering if the old RAM can go in my girlfriends mid 2009 MBP. Is it possible and is it worth it. From what i can find the 2009 supports 1033mhz and the 2011 is 1333mhz. I know my way around a mac, but RAM isn't really my game. Any help would be great
     
  2. flatfoot macrumors 65816

    Joined:
    Aug 11, 2009
    #2
    The newer RAM should work in the 2009 MBP. It's physically compatible (204-pin SO-DIMM) and should usually down-clock to 1033MHz automatically (or rather: work at that lower frequency).
     

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