To overclock today we used the latest beta of MSI Afterburner, which is based on Rivatuner.
By increasing the voltage, we managed to get the core to over 1006mhz, a 14.3 percent increase. The GDDR5 memory maxed out at 1232mhz, a 17.3 percent increase. Very solid results indeed.
The final overclock produced almost 3 fps with the Unigine Heaven Benchmark, a positive increase indeed.