Best ram configuration?

Discussion in 'iMac' started by Renfred93, Dec 12, 2010.

  1. Renfred93 macrumors member

    Jun 22, 2009
    I looking to upgrade to 8GB on my 21" imac from late 2009. so I've decided owc ( might be a good choice. So from what I;ve seen I have two options, get x2 2GB sticks or one 4GB sticks. Is there a better option? The 4GB stick costs about 10 dollars more but would be more beneficial in the long run because I would be able to upgrade to 10 or 12 in the future sine there will be one more slot open if I wanted to, or but the 4GB stick in a new computer. Or is there a problem or performance issues with having 3 slots only occupied? Thanks for the help
  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    The 4GB module would run in single-channel mode but that's not something you should worry about as dual-channeling is negligible in real world. Get the 4GB module as it gives you more upgradeability
  3. Renfred93 thread starter macrumors member

    Jun 22, 2009
    Thanks for the advice, reassuring. Yes I remember something about dual channeling but it doesn't sound like it would reap much benefit

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