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  1. #1
    Overclocking CPU & GPU

    Member Since
    May 13, 2011
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    82
    Specs:
    Macbook 13-inch Mid 2007 | 2.0GHz Core 2 Duo | 3GB Ram | 250GB Hard Drive | 2nd Hard Drive 80GB
    Overclocking CPU & GPU
    A while ago i had a HP G60 AMD CPU and NVIDIA 8200m GPU. I used to overclock it using the NVIDIA control panel, and evga precision. Latley ive been trying to overclock other computers including my mac but i seems that its impossible. Why is this? why can i overclock my CPU or GPU in my mac.




    I do run win7 on my mac to try and overclock but no luck. Any one know why?

  2. #2
    Overclocking CPU & GPU
    McYukon's Avatar
    Member Since
    May 14, 2009
    Location
    Near Whitehorse, Yukon
    Posts
    2,052
    Specs:
    2012 MBP i7 2.7 GHz 15" Matte - 16 GB RAM - 120 GB Intel SSD - 500 GB DataDoubler Mac OS 10.9
    If at all possible, overclocking works only on a few select system and even then only with hardware based changes meaning it cannot be done with software.
    Don't ask me why though.
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  3. #3
    Overclocking CPU & GPU
    BrianLachoreVPI's Avatar
    Member Since
    Feb 24, 2011
    Location
    Maryland
    Posts
    3,733
    Specs:
    March 2011 15" MBP 2.3GHz i7 Quad Core 8GB Ram | Mid 2011 27" iMac 3.4 GHz i7 16 GB RAM 2 TB HDD
    There are a couple of similar threads over at Mac Rumors Linky. Experiment at your own risk.

  4. #4
    Overclocking CPU & GPU
    schweb's Avatar
    Member Since
    Oct 27, 2002
    Location
    Cleveland, Ohio
    Posts
    13,190
    Specs:
    MacBook Pro | LED Cinema Display | iPhone 4 | iPad 2
    You can also try at over http://overclockers.com which is one of our affiliated sites.
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  5. #5
    Overclocking CPU & GPU
    robduckyworth's Avatar
    Member Since
    Jan 04, 2011
    Location
    Reading, UK
    Posts
    2,971
    Specs:
    15" MBP, 2.5GHz i7, 750GB, 6770M 1GB, iPad 3, iPhone 4, custom PC
    Bad idea to overclock a Mac. The CPU/GPU temps have been closely monitored by Apple engineers, and if you haven't noticed, Macs tend to run hotter than PCs (due to the confined spaces the components are in). They are already running at optimal speed and temperature. You haven't got much headroom to play with - and as you may know, more volts, more heat. Most Overclockers use beefy aftermarket heat sinks with multiple large heat pipes dragging heat away from the CPU, before being cooled by multiple fans. Most Macs only have a couple of small stock fans - specifically designed to cool the CPU inside the system at the speed it is already running at.

    You have no control over the airflow of your system, other than using an app to speed the fan up. Which can damage the fans.

    With these limitations in mind, is it really worth risking damaging your computer for about a 5-10% (if that) increase in performance anyway?
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  6. #6
    Overclocking CPU & GPU
    Dutchlimits's Avatar
    Member Since
    Dec 24, 2010
    Posts
    37
    Specs:
    MBP 17inch, Intel Core i7 2,6 Ghz (Boost: 3,2 Ghz), 8GB DDR3 1066Mhz, Nvidia GeForce 330M
    For the little speed gain it ain't worth it. Don't try this unless you want a broken mac. Just buy a i7 MBP like i did.
    Life longer, save some headache, get yourself a mac

  7. #7
    Overclocking CPU & GPU

    Member Since
    May 13, 2011
    Location
    Somewhere in Georgia
    Posts
    82
    Specs:
    Macbook 13-inch Mid 2007 | 2.0GHz Core 2 Duo | 3GB Ram | 250GB Hard Drive | 2nd Hard Drive 80GB
    Well last night i overclock my iMac 7,1 Ati 2400 xt, C2D 2.0ghz. I overclocked the Gpu and played Need for speed shift 2 @ 1248 x 600 in windowed mode. Low settings and it still looked pretty **** good worked like a charm. I used ATI tray tool because nothing else seemed to work, not even evga precision(witch was my fav before switching to mac) or even ati tool. Rivatuner either.

  8. #8
    Overclocking CPU & GPU
    Dutchlimits's Avatar
    Member Since
    Dec 24, 2010
    Posts
    37
    Specs:
    MBP 17inch, Intel Core i7 2,6 Ghz (Boost: 3,2 Ghz), 8GB DDR3 1066Mhz, Nvidia GeForce 330M
    Quote Originally Posted by treyweez11 View Post
    Well last night i overclock my iMac 7,1 Ati 2400 xt, C2D 2.0ghz. I overclocked the Gpu and played Need for speed shift 2 @ 1248 x 600 in windowed mode. Low settings and it still looked pretty **** good worked like a charm. I used ATI tray tool because nothing else seemed to work, not even evga precision(witch was my fav before switching to mac) or even ati tool. Rivatuner either.
    iMacs run way cooler than Macbooks
    Life longer, save some headache, get yourself a mac

  9. #9
    Overclocking CPU & GPU
    robduckyworth's Avatar
    Member Since
    Jan 04, 2011
    Location
    Reading, UK
    Posts
    2,971
    Specs:
    15" MBP, 2.5GHz i7, 750GB, 6770M 1GB, iPad 3, iPhone 4, custom PC
    Quote Originally Posted by treyweez11 View Post
    Well last night i overclock my iMac 7,1 Ati 2400 xt, C2D 2.0ghz. I overclocked the Gpu and played Need for speed shift 2 @ 1248 x 600 in windowed mode. Low settings and it still looked pretty **** good worked like a charm. I used ATI tray tool because nothing else seemed to work, not even evga precision(witch was my fav before switching to mac) or even ati tool. Rivatuner either.
    You could run that on stock speeds. 1248 x 600 isn't exactly amazing...
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