GTX 580 vs. ATI 6970?

[mattag08]

I'm glad you see my dilemma. I will agree that CloD is still in development for all intents a purposes and that coming patches may make one card a clear winner, but for now I'd like to see if there's already a disparity or a clear performance gain from extra VRAM over 1.5 GB and if we're seeing one card clearly beating the other.

To answer one of the earlier poster's questions, I do play other games on a regular basis, but IL-2 is by far and away the one I play most often. (Ex. In a week where I spend 20 hours on video games, about 10-15 will be IL-2).

Also, in response to another poster, I do not want or plan to get the 3GB GTX 580 or the GTX 590.