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Thread: About Overclocking

  1. #1
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    Question About Overclocking

    First of all,I have totally ZERO knowledge about overclocking.The idea I have about is that,overclocking is increasing the clock speed of a GPU,CPU or a RAM to increase performance.

    Can I Overclock my AMD Sapphire HD7770 OC edition?AMD's catalyst control centre has got the "Overdrive" catagory for overclocking I believe.My PSU is 500 watt-Thermaltake Litepower v3 black edition.CPU is i3 2120.

    Is it really safe at my end?or how many fps will I get more?is it worth it?Please note that I have no cooling system inside.I am not sure if there is a fan inside.Well,if it's safe I'll use reasonable clock speed.Another thing I noted from google is i need to use Heaven2.0 to stress Testing.Please enlighten me on that regard.

    - - - Updated - - -

    Ran a test using Heaven 4.0 The Temp is 76C while benchmarking

    - - - Updated - - -

    @ GPU Stock Clock

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    If you don't have proper cooling inside, then don't overclock your gpu. By the way, what is the revision of your card? My sapphire HD 7770 OC is revision 1. It has a core clock of 1150MHz. The revision 2 model has a core clock of 1100MHz.

    I have overclocked my GPU. Core clock from 1150 to 1180 MHz. And memory clock from 1250 to 1400 MHz. And I used Unigine Valley. At first I overclocked core clock to 1350MHz and ran Valley for two hours. If it failed I lowered it by 10MHz. When it passed successfully the two hour stress test, I ran a graphically intense game like NFS Rivals for an hour at least. If it passed, I moved on to overclocking memory clock and started from 1480 MHz clock and followed the same procedure like core clock. In the end, lower each clock by 10 MHz at least to add further stability.

    *I have four additional 12cm fans inside my PC case.

    Overclocking actually affects minimum FPS than max fps. So, your average fps will increase. I had an increase of 2-3 FPS

    Overclocking requires patience and free time

    Follow the above steps and I hope you find your best clocks.

    OVERCLOCKING VOIDS WARRANTY. SO, YOU ARE RESPONSIBLE IF GPU GETS DAMAGED!!!!!
    Last edited by GalibTheGamer; June 3rd, 2014 at 12:28.

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    Frankly speaking OCing an OC version GPU will hardly make any difference in performance. I have a MSI 670 Power Editon that is factory OCed. I can hardly squeeze out 50MHz without crashing and yet it only gives me around 5-6 FPS more. So I would say it not worth OCing your GPU as it is already factory OCed. And like GalibTheGamer said, OCing voids warranty.


  4. #4
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    Right.Thanks guys!

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