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What Makes Apple's Power Mac G5 Processor So Hot

Posted by Hemos on from the learn-the-basics dept.

An anonymous reader writes "58 million transistors can drive a lot of power. Apparently, Apple appreciated the choices IBM processor architects made when designing the 970 family. This article provides the 64-bit architecture big picture for the 970 family (A.K.A. the Power Mac G5) and the critical issues in IBM's 64-bit POWER designs, covering 32-bit compatibility, power management, and processor bus design."

6 of 313 comments (clear)

  1. Heat Problem Back Ground by Mstrgeek · · Score: 0, Flamebait
    This is q great write-up dealing with the heat problem

    http://homepage.mac.com/techedgeezine/2004-0610_ne w-g5.htm

    --
    Chris Williams clw7500nc@gmail.com
  2. Re:What makes it so hot (abridged) by TAGmclaren · · Score: 1, Flamebait
    Basically, we took one of our superchips that go into superservers, with a gitastic cache and frontside bus, stripped it down a bit so we don't cut into our own market, and gave it a new name. Isn't that cool?


    For us Apple users - you bet!

    Well, except for the fact that the processor's so hot, but you know what I mean :)
    --
    Iran has endorsed
  3. Re:Nice title... by the_2nd_coming · · Score: 0, Flamebait

    umm, the G5 puts out less heat than the Athlon 64 (which puts out less heat than the P4)

    only a moron would assume that the liquid cooling (not chilling) is because of temperature.

    --



    I am the Alpha and the Omega-3
  4. Re:Nice title... by the_2nd_coming · · Score: 0, Flamebait

    http://www.theregister.co.uk/2004/01/22/ibm_claims _massive_power_cut/

    you are a moron. go eat it stupid. it is for SOUND!!!!!

    --



    I am the Alpha and the Omega-3
  5. Re:anyone else noticed how COOL the AMD-64 chips r by Bruha · · Score: 1, Flamebait

    bah the idiot is probably not running any applications.. load up seti at home or prime95 and let it burn in for a few minutes..

    Then touch your heatsink and tell me it's cool.

    Think he forgot about coolnquiet tech.. that proc probably runs sub 500mhz when idle.. so passive cooling works.

  6. Re:atoms in one universe by gamlidek · · Score: 0, Flamebait

    So, what happens if you want to use your fancy computer to model two universes?

    Simple. Since we've got a computer capable of simulating the entire universe, we'll just use it to simulate a universe which contains a computer which is capable of simulating more than one universe.

    Like putting too much air in a balloon!

    Of course, it's so simple!

    --
    "In theory, theory and practice are the same; in practice, they are not."