Today we are using Catalyst Control Center to overclock the card, as many of our usual tools don’t yet support the new architecture.
We managed to push the core to 1015mhz, which is a great achievement for a reference cooled card. We would expect further gains when AMD partners release their nhanced custom cooling solutions over the next couple of months. Initially we managed to overclock the GDDR5 memory to around 1,500mhz, but we noticed some very minor artifacting past 1430mhz and decided to settle on the safest figure possible.
The overclock helped to increase the overall 3DMark 11 score from 7904 points to almost 8,400 points. A very healthy increase indeed.AMD HD7970 Graphics Card Review,