PowerColor HD7970 Overclocking & Eyefinity Review
3D Mark Vantage
If the stock result was impressive, then when overclocked the HD7970 reveals even higher levels of performance and responds very well. 3500 improvement in P-Score is pretty good going, but the fact we see the same increase in the Extreme test is very eye-opening.
3D Mark 11
Once again showing what an enormous step up the Tahiti GPU is over the previous generation, the PowerColor when overclocked is capable of keeping up with the HD6990. Damn impressive.