Even if you are dubious about the source this article is quite interesting.
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It doesn't use it automatically, DX10.1 just says that games must support at least 4xAA. If you have a game that doesn't support antialiasing at all you're going to run into problems when coding it.so dx10 uses AA automaticly? which would explain the slowdown in dx10 games.



So does this mean that the R600 approach to AA (3850, 3850)will start performing better? Or is it totally unrelated

Even if you are dubious about the source this article is quite interesting.