To overclock today we used the latest beta of the MSI Afterburner software tool which allows for 3 way voltage tweaking.
We managed to push the core clock to 1260mhz, from 1070mhz, which translates to an almost 18% increase. The memory maxed out at 1478 mhz, or a 3.7% increase.
When the card is manually pushed to the limits, we achieved a score of 9,821 points, almost in line with the HD6990. Great results.