Originally Posted by Frag Maniac
Could be the VRAM actually. The 6970 is made in both 1 and 2 GB versions. Which is yours?
I believe it was the HD6950 that came in 1GB and 2GB variations. It's probably not ideal to be playing a game that is really demanding with 4GB RAM. Adding another 4GB would probably help quite a bit on such a demanding title. Otherwise lowering AA is really the only way to squeeze out more FPS.