mid 2009 macbook 4gb or 6gb ram

Discussion in 'MacBook' started by jchase2057, Apr 9, 2011.

  1. jchase2057 macrumors regular

    Joined:
    Dec 6, 2010
    Location:
    Detroit
    #1
    i have a mid 2009 pre unibody macbook. It can recognize up to 6 gigs of ram with a 4gb and a 2gb. my question is what would be faster 4gb with matching 2gb modules or 6gb with mismatched modules?
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    6GB will help more, as using matched pairs will only offer a slight 10% performance increase.
     
  3. msjones macrumors 6502

    msjones

    Joined:
    Oct 18, 2007
    Location:
    Nottinghamshire, UK
    #3
    I have the same MacBook as your currently running a 2x2GB matched pair. There is definitely a performance boost running this as opposed to the 6GB configuration.

    However I have read on here and the apple forum that these mid 2009 can run with 8GB installed. I will be doing this upgrade within the next week so I will be sure to report back with how it goes.
     
  4. jchase2057 thread starter macrumors regular

    Joined:
    Dec 6, 2010
    Location:
    Detroit
    #4
    im 99% positive that it wont recognize more than 6. you can install 8 but it wont recognize more than 6.
     
  5. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #5
    There was a firmware change that enabled 8GB on a lot of older models, so that may be one of them. Anyhow, dual channel performance increase is very small, so you would see far better performance if you actually need the extra memory. If you don't ever exceed 4GB, then there is no need for 6GB.
     
  6. msjones macrumors 6502

    msjones

    Joined:
    Oct 18, 2007
    Location:
    Nottinghamshire, UK
    #6
    RAM is now on order should be here for the weekend :)
     
  7. sangretoro macrumors newbie

    Joined:
    Mar 28, 2012
    #7
    Hi, msjones. Did the 8gb work for you?
     
  8. darrennie macrumors newbie

    darrennie

    Joined:
    Aug 21, 2010
    Location:
    Just over the horizon
    #8
    Some RAM stats

    :apple: According to MacTracker...:apple:
    The Early and Mid 2009 MacBook 5,2 A1181 will run 6GB though Apple says 4GB
    The Late 2009 MacBook 6,1 A1342 will do 8GB with Apple saying 4GB.
     

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