8600M GT clock speeds?

Discussion in 'MacBook Pro' started by superspiffy, Apr 5, 2008.

  1. superspiffy macrumors 6502a

    Joined:
    Feb 6, 2007
    #1
    I've heard that the 8600M GTs are suppose to run at 475/700 but at the same time Apple underclocks them. So by default, how fast do they run on a 15'' Penryn MBP with 512vram? With that, how about the 17'' Penryns?
     
  2. superspiffy thread starter macrumors 6502a

    Joined:
    Feb 6, 2007
    #3
    I've already tried using NVIDIA monitor but it gives me dynamic readings because I think the GPU speeds are dependent on what you're doing.
     
  3. lego8 macrumors regular

    lego8

    Joined:
    Mar 9, 2008
    #5
    Hi,

    Can someone post how to change the clock speed so that it becomes faster?


    Thanks
     
  4. superspiffy thread starter macrumors 6502a

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    Feb 6, 2007
    #6
    I haven't encountered any OCing program that works with Vista 32bit yet. Has anybody successfully OCed in Vista? and which gfx drivers did you use?
     
  5. Block macrumors 6502a

    Block

    Joined:
    Jun 28, 2007
  6. superspiffy thread starter macrumors 6502a

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    Feb 6, 2007
    #8
    I just want to get the card back to its intended speeds
     
  7. burningrave101 macrumors 6502

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    Mar 4, 2008
    #9
    So does upgrading the hard drive yet lots of people do it.
     
  8. superspiffy thread starter macrumors 6502a

    Joined:
    Feb 6, 2007
    #10
    Does anybody know why I can't OC? I've tried everything from the 167s to the 169s and 174s and the OC programs can't OC.
     
  9. Mackan macrumors 65816

    Joined:
    Sep 16, 2007
    #11
    It is always an unpleasant surprise to know that whatever videocard Apple puts into MacBook Pro, there is a high chance it is will be underclocked.
     
  10. Block macrumors 6502a

    Block

    Joined:
    Jun 28, 2007
    #12
    I was just giving a heads up.
     
  11. makasin macrumors member

    Joined:
    Oct 28, 2007
    #13
    I dont see how using software to OC it would void your warranty. Also theres no proof that it was OC'd if its software
     
  12. Jiddick ExRex macrumors 65816

    Jiddick ExRex

    Joined:
    May 14, 2006
    Location:
    Roskilde, DK
    #14
    AFAIK none of the drivers on laptopvideo2go.com works with OC'ing. If you're running XP AtiTool and the default BootCamp video drivers works well.
     
  13. wgilles macrumors 6502

    wgilles

    Joined:
    Feb 21, 2008
    #15
    Well I read on another post that >160 won't allow you to overclock...
     
  14. zepharus macrumors 6502a

    zepharus

    Joined:
    Aug 7, 2007
    #16
    Grab the newest version of Rivatuner also. It does overclock. I have a 2.4 running at 525/770 no issues at all
     
  15. e12a macrumors 68000

    e12a

    Joined:
    Oct 28, 2006
    #17
    there are a few reasons:
    1. heat
    2. battery life
    3. possibly cooling and fan noise.
     
  16. Jiddick ExRex macrumors 65816

    Jiddick ExRex

    Joined:
    May 14, 2006
    Location:
    Roskilde, DK
    #18
    ...where only the first reason you name actually makes sense.
    Battery life does not play a role since no matter how high the GPU is clocked, it will downclock itself according to usage.
    Regarding fan noise my MBP blasts off like a jet when doing CPU intensive tasks in OS X as well, so that doesn't really matter either.

    I guess heat is an issue but when gaming in XP, it doesn't get hotter than 80 C, regardless of clocking it to normal speed or no via. AtiTool.
     

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