Question - Memory upgrades for new iMac

Discussion in 'iMac' started by lalutte, Aug 10, 2007.

  1. lalutte macrumors newbie

    Aug 10, 2007
    I just put an order in for a new 24" iMac on order (YEAH!!!).

    To save a couple of bucks, I thought I'd install my own RAM.

    Here's the question:

    Apples specs keep referring to
    PC2-5300 (667) DDR2 200-pin SO-DIMM
    but everything I keep finding for sale is
    PC2-5400 (667) DDR2 200-pin SO-DIMM

    Can someone tell me what the difference is?
    More importantly, will the PC2-5400 work fine in an iMac?

    My guess is that it's fine, but I figured someone one these forums would know for sure.

  2. mothergoose45 macrumors member

    Oct 21, 2006
    Go to and go to the Ram selector. Then pick your Imac. I ordered the 4 gb kit from them Wed. and will get it this morning. They are recommended on here by many people and have a lifetime warranty. Can't go wrong with that guarantee if the ram works like everyone is telling me.
  3. lalutte thread starter macrumors newbie

    Aug 10, 2007
  4. rainydays macrumors 6502a

    Nov 6, 2006
    I'd also like to know regarding PC2-5300 vs PC2-5400. They seem to run at the same frequency so I suppose it should work fine? The model number for the 4GB kit is KTA-MB667K2/4G after all.
  5. l33r0y macrumors 6502

    Aug 7, 2007

    Buy it and try it. Just find out their return policy. 5400 has a higher bandwidth. It also may have a lower cache latancy. Whether the iMac will take advantage is another thing. Try some before/after benchmarks.
  6. johnmcboston macrumors 6502


    Sep 16, 2005
    I ordered their memory as well. Unfortunately, it will arrive a week before the computer does. :)
  7. jesteraver macrumors 6502

    May 16, 2006
    Montreal, QC

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