AMD has released the details and reviews for their latest high-end video card. They're calling it the HD 7970 GHz Edition and according to the reviews I've read, it is actually faster than the GTX 680 at higher resolutions. The GHz Edition is built the same as the regular HD 7970, but it has been clocked to 1,000/6,000 instead of 925/5,500.
The manufacturers are being really slow at putting up their pages for this card as it seems like Club3D is the only one that is on the ball. I'll keep looking for the other manufacturer's pages of course. The overclocking roundup will be posted soon.