What's up with 8-core?

Discussion in 'Mac Basics and Help' started by Kankki, Nov 25, 2007.

  1. Kankki macrumors regular

    Joined:
    Sep 10, 2007
    Location:
    Österbotten, Finland
    #1
    Does a 3ghz 8-core Mac Pro Equal a 24ghz single core processor? :confused:

    Thanks!
     
  2. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #2
    No. It's 8 3Ghz CPUs. This has been asked at least 2 or 3 time in the last month. Please do a search for the full reasoning.
     
  3. MacsAttack macrumors 6502a

    Joined:
    Jul 2, 2006
    Location:
    Scotland
    #3
    No.

    Many applications can only use a single processor - so performance in such cases will be the same on a single core 3ghz machine as on an 8-core (or 32-core) systems. Having more than one processor does have a slight impact as different cores can deal with different tasks at the same time (but have to share disk and memory access). Some software is written to split up the tasks they undertake between multiple cores. Some audio and video processing. A good example is 3D rendering software.

    In the real world the advantage of multiple cores is that some OS tasks can be running on one or more cores, while other programs run on others - giving better system responsiveness. A good example would be when I'm running Illustrator or Photoshop, and I've got iTunes running, while eyeTV is encoding a recorded program for iPod, while mail and Safari are running. Sometimes I fire up Lightwave - and it is then that I get close to the "full" speed (equivalent of 3 x 4 = 12 Ghz - probably closer to around about the equivalent of 10Ghz).
     

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