AMD 7970HD 3Gb and CoD

[Ataros]

It has different architecture and is generally faster according to many other tests. Thus it may be faster in CloD in complex scenes where FPS is minimal.

But I am not sure it does not take the FPS hit on particles. To prove it you have to run the same track under the same conditions (CPU speed & cache size, memory, game and driver settings, software running, etc., etc.)