Benefits of 64 Bit

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

  1. thechris69 macrumors 6502


    Nov 11, 2005
    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

    May 19, 2002
    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


    Sep 13, 2001
    Portland, OR
    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

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

    Oct 24, 2006
  6. cube macrumors P6

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

    Oct 24, 2006

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