As with any videocard, overclocking is an art form that requires patience to find the right balance of performance while keeping the videocard 100% stable. With a stock baseline set at 750Mhz Core and 800Mhz memory, through constant testing and benchmarking, I was able to push the core up to 820Mhz for an additional 70Mhz and the memory could be increased all the way up to 840Mhz for a 40Mhz increase. The overclock was rock solid stable and as you will see in the upcoming benchmarks, it did increase the performance by a sizable margin. You can consider it free speed for no extra money. With additional memory cooling, I could have probably got a little more from the GDDR5, but this overclock was rock stable as it was now.