Imac G5 ram question

Discussion in 'Buying Tips, Advice and Discussion (archive)' started by supersize, Nov 2, 2004.

  1. supersize macrumors member

    Nov 2, 2004
    Hello all I am a long time reader of this forum but this my first post. I just got my 17" G5 iMac a couple of weeks ago and I love it. My question is, I want to upgrade the ram I now have 512mb that I got from apple and am looking to add atleast another gig or ram to it but I was wondering if it would be better to get another 512 stick so I have the 128 bit bus or should I go ahead and get a 1gig stick from newegg and then be ready to move up to the full 2 gigs later. So i guess my real question is does pairing up the ram really make that much difference compaired to adding more ram?

  2. ScottN macrumors newbie

    Oct 17, 2004
    London, England

    My understanding is that, although pairing the RAM has significant effect in certain specialist tests, the increase in performance in real life (i.e. on the applications you will be using) is minimal if not non-existant.

    I'm ordering my iMac with the bog standard 256MB and am going to whack a single 1GB stick in there until I can afford to buy another one.

    Good luck!
  3. cluthz macrumors 68040


    Jun 15, 2004
    I isn't enuff with same size on the stick.
    It has to be same composion too, and same cas latency(?)
    anyway, i think 1.5GB@64bit is better than 1GB@128-bit
  4. Makosuke macrumors 603

    Aug 15, 2001
    The Cool Part of CA, USA
    Although the paired RAM does show nice-looking numbers in a couple of specialized benchmarks, the real-world advantage with current applications is, apparently, nil.

    BareFeats did some tests and real world benchmarks on exactly this issue:

    They also provide some interesting notes on picking the correct RAM for the iMac (Crucial is always a safe bet, though).

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