Which RAM for New iMac i7?

Discussion in 'iMac' started by lacohido, Aug 17, 2010.

  1. lacohido macrumors newbie

    May 16, 2006
    Hi all
    I'm trying to figure out which one of these I should get. Both have reviews from iMac owners. The only difference I can tell is that one is Pc3 10600 and the other Pc3 10666.



    I want to add the 8GB of RAM to my existing 4GB (stock Apple RAM) without compatibility problems.

    This Post says that there is not really a difference between the two, but just want to make sure.

    Any help would be great!

  2. MaxBeagleton macrumors member

    Aug 9, 2010
    Upstate NY
    be careful, the specs are confusing...

    I installed two each of the first link and my new i7 is very happy. (4x4GB). [Edit: This G.SKILL memory turned out to be bad. It passed the Apple memory test but caused instability (shutdowns) at random times, sometimes being okay for hours. Anyway I returned it to NewEgg and now sport Samsung memory from OWC.]

    Be careful, the second link is 1066 memory, not 1333 memory. You probably just copied the wrong link.

    If I were buying today from NewEgg, I would probably go for the OCZ memory. Right now it's the cheapest and it has slightly better latency (9-9-9-20 vs. 9-9-9-24) than my G.SKILL choice, although I doubt you would notice a difference in any real-world comparison.
  3. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    As it says in the article you link, there is no actual difference. Some people call it 10600 and some call it 10666. BTW, the other one is PC3-8500 and other is PC3-10600, they have a difference (1066MHz vs 1333MHz). I would get the PC3-10600 i.e. 1333MHz RAM because your iMac already comes with 1333MHz and you don't want the existing RAM to be underclocked to 1066MHz because of the new RAM
  4. lacohido thread starter macrumors newbie

    May 16, 2006
    Thanks guys! I think Im gonna go with the OCZ 2x4GB seen here

    Is there a reason why people would pay 50 bucks more to buy through OWC/macsales.com?

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