Graphics Card Overclocking
Thanks to motherboard and VGA manufactures, overclocking has become such an effortless task, giving literally anyone the chance to overclock their components with very little risk.
When it comes to overclocking graphics card we use and recommend two program - for ATI cards you can't go past ATI Tool and if you're on the other side of the fence and using an nVidia card the Coolbits 2 registry hack is it. Both programs offer an Auto Overclock feature which is what we use.
The standard clock on the HIS X800GTO is 400MHz on the core and 490MHz on the memory but with the iTurbo function HIS guarantee speeds of 500MHz on the core and 500MHz on the memory. Fortunately it didn't want to stop there and we managed to achieve an astronomical 577MHz on the core and 623MHz on the memory.
With our VGA clocked massively above stock we can see the performance increase is huge.
Doom 3 also sees a very healthy performance increase moving from under 90FPS to almost 105FPS.
Far Cry sees no performance difference at the lower resolution with the graphics card overclocked.