Overclocking X1600

Discussion in 'Windows, Linux & Others on the Mac' started by I'mAMac, Aug 6, 2008.

  1. I'mAMac macrumors 6502a

    I'mAMac

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    #1
    I just wanted to see what other people have OC'd their X1600 (in windows) to. Mine is at 472 core 480 mem and I was wondering if I could go a little higher?
     
  2. I'mAMac thread starter macrumors 6502a

    I'mAMac

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  3. Lord Blackadder macrumors G5

    Lord Blackadder

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    #3
    I doubt you'll get much of a response here...the X1600 was only used by Apple in the iMac G5. It's integrated GPU makes overclocking more risky than with a desktop.
     
  4. crazzyeddie macrumors 68030

    crazzyeddie

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    #4
    You're pretty much wrong here, as the X1600 was used in all MBPs and iMacs for about 2 years...

    As far as OC'ing, I don't think you're going to see much of a performance benefit, but the only way to tell is to keep pushing it until you see screen artifacts. Then back it down a notch, and see if you can get it to run reliably. Its really just a trial-and-error process.
     
  5. Lord Blackadder macrumors G5

    Lord Blackadder

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    #5
    Or rather we're both wrong, now that I think about it, seeing as Apple never used a desktop X1600 - both the MBP and the iMac used the Mobilty core, which has different overclocking characteristics from the desktop version.
     
  6. I'mAMac thread starter macrumors 6502a

    I'mAMac

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    #6
    But heat won't really be an issue as long as theres no artifacts right?
     
  7. The Flashing Fi macrumors 6502a

    Joined:
    Sep 23, 2007
    #7
    Just because you don't see artifacts, doesn't mean the heat isn't an issue. There is a reason why Apple clocks the x1600 at the speeds that they do. When you increase the temp in the case, which you will do by overclocking the x1600, it affects the heat dissipation from the CPU, which can cause the CPU to overheat or any other chips on the motherboard (like the northbridge or southbridge). The airflow in the Macbook Pro or the iMac doesn't even compare to the airflow in a regular mid-tower to full-tower PC case (like that of the Power Mac/Mac Pro). With the Macbook Pro/iMac, you what get is what you have. There's really not much you can do about it.

    Personally, I don't think the risks outweigh the benefit of overclocking the x1600. It was a mediocre card when released, and it's now a few generations old.
     

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