Are people trying to overclock quad core iMac?

Discussion in 'iMac' started by 53x12, Dec 8, 2009.

  1. 53x12 macrumors 68000

    53x12

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    Feb 16, 2009
    #1
    [​IMG]

    I was looking on GeekBench and noticed there are quite a few quad core iMac that are running faster than the 2.66GHz of the i5 and the 2.8GHz of the i7. I can't make sense if people really are trying to overclock or just somehow are making Geekbench think they have a faster CPU/are editing their scores somehow. How in the world could one overclock the iMac when cooling is a serious concern?
     
  2. waitingonnov macrumors member

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    Nov 6, 2009
    #2
    I would assume that is the turbo function....
    The cpu overclocks itself


     
  3. burningrave101 macrumors 6502

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    Mar 4, 2008
    #3
    iMacs are not overclockable because there is no system BIOS to enter that allows the changing of the system clock speed. What you're seeing is either Turbo mode or a different quad core system they're comparing the 2.66Ghz and 2.8Ghz iMacs to.
     
  4. 53x12 thread starter macrumors 68000

    53x12

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    Feb 16, 2009
    #4
    Right, the turbo boost goes up to 3.46GHz for the i7 and i5 goes up to 3.2GHz. I was just curious where these numbers above 3.46GHz are coming from. But I think you answered that in that they are using a different quad core system, however under the description it says it is an iMac with the i7-860 with the stock Apple motherboard.
     
  5. burningrave101 macrumors 6502

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    Mar 4, 2008
    #5
    I wouldn't be surprised if they have a quad core Mac Pro thrown in the mix of benchmarks there.
     
  6. 53x12 thread starter macrumors 68000

    53x12

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    Feb 16, 2009
    #6
    Not that I am going to try and over clock my iMac as I am perfectly happy with it, but couldn't one boot into Windows and overclock it from that side? Seems like ZDnet was able to overclock a MacPro, even if they did run into some issues: http://www.tomshardware.com/news/Apple-Mac-Pro,5784.html.
     
  7. 300D macrumors 65816

    300D

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    May 2, 2009
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    #7
    Its been shown there are a couple of PC systems masquerading as an iMac in the geekbench system profile.
     
  8. 53x12 thread starter macrumors 68000

    53x12

    Joined:
    Feb 16, 2009
    #8
    Oh ok, thanks for sharing that.
     

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