All ya do is download and install coolbits. Then you'll see an overclocking tab in your card settings menu. Just inch it up a few mhz at a time and test for stability and artifacting. You wanna overclock your core and memory seperately to find each one's max. Then combine them and adjust down if you start to run hot or see artifacts. I can't stress this enough, go slow, a few mhz at a time or YOU WILL DAMAGE YOUR CARD. Also, every card is different, some of them will get a 20% overclock or more, and some wont go hardly anything over stock, it's just luck of the draw. hope this helps and have fun.