ASUS GPU TWEAK II

The GPU Tweak II software allows you to control the clocks of the card and monitor its current state.

From the simple mode tab, you can switch between OC, Gaming and Silent profiles.

The OC scanner pushes the card to its limits to see what the maximum attainable/stable clocks are.

Via the gaming booster tab, you can tweak various windows settings to squeeze a bit more system resources for gaming.

ASUS has a few more apps available which you can download from the tools tab.

Finally, from advanced mode you have complete control over the cards clocks, fan speeds and voltages.