If you guys haven't learned how to overclock your computer, you may want to learn about them to squeeze out every computing power from your computer.
But first of all, you need quality CPU components, otherwise don't bother as it will fry your gpu, cpu, and mem within hours of usage if overclocked too high. The basis of a good overclock is on the motherboard itself and not that much on other components.
Heres' a link for starting up and getting free processing power.