Quote Originally Posted by zalbard View Post
2x HD6850 have much higher VRAM bandwidth, though.
And we don't know for sure whether everything gets doubled or not.
It's all speculation...
6850 is extremely inefficient in terms of mem BW usage (mem BW scaling is better than on cypress), i bet that Cayman will have a significantly more efficient memory controller like cypress did and will make up for the rest with a higher mem BW