Quote Originally Posted by Macadamia View Post
Only 2 GPUs would work.

DX9's hard limit is 3 frames (3 GPUs in AFR) BUT ATI locked the system down to 2 X2s for Vista CFX I think. 4870 + 4870X2 should work, but I'm not entirely sure.

And most of the time, Vista will have better ATI drivers (it's the trend for about 10 monthly releases already)
Yeah but if the 4870X2 identifies itself to the PC as a single GPU, then it would work, no? If it uses a shared memory pool, that means it is not crossfire on a card. Whether or not it still identifies as dual GPUs to the system is yet to be seen. I really hope it shows up as one because I do NOT want Vista.