New iMacs - 800Mhz RAM?

Discussion in 'Buying Tips and Advice' started by Tsurisuto, Aug 9, 2007.

  1. Tsurisuto macrumors 6502

    Joined:
    Jun 13, 2007
    #1
    I was looking at the prices for RAM upgrades on Crucial and I noticed that they offer 2 choices:

    DDR2 PC2-6400 (800Mhz) or DDR2 PC2-5300 (667Mhz)

    Apple just offer RAM speeds off 667Mhz, is there going to be much of a difference if I choose to upgrade?
     
  2. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
  3. Magnus Reftel macrumors member

    Joined:
    May 16, 2006
    #3
    No. The new iMac is built on the Santa Rosa platform, and Santa Rosa only supports DDR2-533 and DDR2-667. If you install 800MHz memory, it will be underclocked to 667, like mad jew says.
     
  4. Tsurisuto thread starter macrumors 6502

    Joined:
    Jun 13, 2007
    #4
    Thanks for the info. So what chipset do we have to wait for, to take advantage off 800Mhz RAM?
     
  5. rds macrumors regular

    Joined:
    Aug 9, 2007
    #5
    Unless you plan on overclocking (which I highly doubt), there wouldn't be much difference between the two.

    If you look at today's prices, you can get 4GB of PC2-5300 for the price of 2GB of PC2-6400.
     

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