you need to increase the mhz on core and memory . the first will increase the gigapixel/s and the second the bandwidth. the voltage increase will allow further o/c on these values but i think it is locked in your gpu.proceed by small amounts of 15-25mhz you can use the asus software to o/c or msi ufterburner or evga percision, or any other software you prefer. always monitor temps. i would prefer to always stay below 85c