I recently posted up our HD 7970 crossfire results. AMD released their 8.921.2 RC11 driver update the same day as our last post. Here are updated graphs showing the crossfire performance with the new drivers. I still experienced flashing and artifacts when in game water was in view and our test bench would have odd lockups when left sitting idle for a while. The performance increases with the new drivers are impressive, I hope they work out the rest of the bugs. Two HD 7970's is the best performance you can get currently (short of adding even more cards, lol) but without the driver support its going to be a tough sell.