Hexus has _always_ been biased to NV. Wait for the "real" benchmarks and not some teenagers dreams, will you? After Anand, Tech report and HardOCP we will have some more up to date figures.
Hmmm. I've always considered Hexus as a fair (as in even-handed) site for reviews. The DIRT2 reviews are a bit suspicious this time around (why only DX11 for the highest res and max aa/af?) though...