Inno3D supply their own software for overclocking, but we achieved the same results by using MSI's Afterburner, based on RivaTuner. It is more user friendly too.
This card ships very heavily overclocked, running at 1,085mhz. We did manage to push it further however, to 1,158mhz before instability would occur. There was not very much additional headroom from the GDDR5 memory.
The additional overclock increased the GPU score from 17,035 points to 17,792 points.