Originally Posted by BonKerz
ohh okay, a legal thing.
No, it isn't illegal or something to use an Nvidia card with an AMD CPU, or an ATI card with an Intel CPU.
I think it's more just that people who are a fan of AMD, tend to buy AMD processors and ATI cards (since they're now from the same company)
Also, Nvidia G92 cards do have the performance lead (in single card configurations, at least), as well as Core 2 processors being faster overall than AMD's K8 processors (K8 = Athlon 64; Phenom processors are K10, and are competitive in performance against Core 2's)
though ATI's 4870 cards are coming out soon, as well as Nvidia's new cards (called GTX 280 and GTX 260)
It's too early to tell which cards will take the performance lead, but I'm thinking it will be close.