RAM Question

Discussion in 'MacBook Pro' started by MacOCD, Oct 10, 2010.

  1. MacOCD macrumors regular

    Feb 11, 2009
    I was thinking about buying a single stick of 4gb RAM for my MBP but I was told a while back that it isn't good to mix memory sizes, so in my case a 2gb with 4gb. They would both be DDR3 1066, but can any one tell me if it is bad to mix the two different modules? :confused:

    Thanks in advance.
  2. stridemat Moderator


    Staff Member

    Apr 2, 2008
    If you want you can mix. However there will be a very small increase in speed if you have matched pairs.
  3. ViciousShadow21 macrumors 68020


    Mar 11, 2009
    To your left or right
    like stridemat said it is fine to mix them. what you might want to do is make sure they are the same brand. the only reason you would want to match them size wise is if you wanted to take advantage of dual channel.

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