Benefits of 64 Bit

Discussion in 'macOS' started by thechris69, Oct 24, 2006.

  1. thechris69 macrumors 6502

    thechris69

    Joined:
    Nov 11, 2005
    #1
    What would the benefits be of a computer with 64 bit be compared to a cpu with 32 bit? Im asking this because Leopard is right around the corner
     
  2. Sun Baked macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #2
    You get more registers, and 64-bit registers.

    The Intel CPUs aren't 64-bit like the PPC970 -- which had 64-bit virtual memory (and 42-bit physical memory), they are running 64-bit registers, 48-bit virtual memory, and 36-bit physical memory.

    The PPC970 was a beast, the Intel CPUs are a bit less complex and deliver what is needed on the desktop now.

    Of course people may say the 64-bit Core 2 Duo doesn't give you much more RAM than a G3/G4/Core Duo which are also all 36-bit -- I think.

    ---

    As far as the 64-bit benefit from Apple, it'll get you more than 2GB of RAM on a Mac ... and RAM is among the top performance boosters on the machine. And the 32GB limit on the XServe and Mac Pro, is a biggie to Pro performance.

    If you have it, 10-20GB/s beats the snot out of 50MB/sec.
     
  3. Catfish_Man macrumors 68030

    Catfish_Man

    Joined:
    Sep 13, 2001
    Location:
    Portland, OR
    #3
    You can use more ram, and on Intel Macs it's a few % faster. There are some other things as well, but they're under NDA, and not directly related to the 64 bitness.
     
  4. mac4evan macrumors member

    Joined:
    Oct 24, 2006
    #5
    Wow! That is really good to know.:)
     
  5. mac4evan macrumors member

    Joined:
    Oct 24, 2006
    #6
  6. cube macrumors G4

    Joined:
    May 10, 2004
    #7
    It is the best model. It allows you to move applications from 32 to 64 bits most easily.
     
  7. mac4evan macrumors member

    Joined:
    Oct 24, 2006

Share This Page