Vista 64 bit vs 32 bit

Discussion in 'Windows, Linux & Others on the Mac' started by MacDonaldsd, Jan 20, 2007.

  1. MacDonaldsd macrumors 65816


    Sep 8, 2005
    London , UK
    Just curious will a 64bit version of vista run in parallels, and would there be any benefit of using the 64bit version over the 32bit version
  2. Slakerr macrumors newbie

    Jul 26, 2005
    I would also like to know this as well

    but running vista in bootcamp

    im leaning towards the 64 bit version (C2D in MBP is 64 bit right)

    are there driver issues with the 64 bit ?

  3. miker51 macrumors newbie

    Aug 30, 2006
    Hard at work

    I believe that Parallels will only run 32-bit operating systems.
  4. SilentJC macrumors newbie

    Jan 13, 2007
    Anaheim, CA
    Might just be my experience... but I had the opportunity thanks to a friend to try out both 64 and 32 bit versions on my iMac C2D 20". Truthfully the 64 bit system ran slow and laggy for me. Not sure why since it's supposed to be faster. However, I've heard that it's due to the chipset's inability to address 64 bits of memory, etc. But the 32 bit final version of Vista Ultimate that I'm running now runs great! A bit of a memory hog on start up, but still runs FSX and Rayman Raving Rabbids with great frame rates.
  5. princealfie macrumors 68030


    Mar 7, 2006
    Salt Lake City UT
    So you can't hack Parallels eh? :cool:
  6. thejadedmonkey macrumors 604


    May 28, 2005
    The MacBook can't use over 3 gigs of RAM, and Vista 32bit can use a max of 4 gigs, so I don't think it makes much of a difference.. right?
  7. WildPalms macrumors 6502a


    Jan 4, 2006
    Honolulu, HI
    Can Vista only address 4GB? Have Microsoft removed PAE?
  8. cblackburn macrumors regular

    Jul 5, 2005
    London, UK
    It's not supposed to be faster at all. 64bit means that when mathematical operations are preformed twice the acuracy can be obtained. If you compile your code very well and use that to pack two 32 bit numbers into one 64 bit instruction then it can go "faster" but you're effectively paralell processing then.

    Especially if, as you say, the FSB is only 32 bit because it will be burning CPU cycles disassembling the 64 bit output into 32 bit input to the other busses.

  9. dukebound85 macrumors P6


    Jul 17, 2005
    5045 feet above sea level
    Just curious how does vista perform compared to xp? faster slower? for instance im debating putting it on my mb 2ghz cd 1.5gb ram
  10. projectle macrumors 6502

    Oct 11, 2005
    It is rather a matter of perspective.

    In XP vs. Vista, Vista will automatically pre-cache commonly used applications into memory to improve loading times giving near instant access to things like Internet Explorer, Windows Mail and the like.

    Or, atleast that is what Microsoft has to say about why Vista takes so many more resources than XP. In their eyes, the resources issue is a misrepresentation of the apps being pre-cached and then cleared out when other programs need the pre-cached space.

    In truth, some apps can load faster on the same hardware after a few tries. Boot time will generally be longer on the same hardware and many resource intensive apps will take longer to load.

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