Apparently the Ati can perform more flops (1.12 terflops) and the nvidia can perform 800 gigaflops. But for the 480 the put CUDA in front of the gigaflops. Are these 2 completely seperate means of measuring processing power or is the 5870 just more powerful?
You have found no such thing, there have been no tests conducted and all anyone is doing at this point is guessing. NEVER believe what nVidia says without proof. They haven't told the truth even once in the last two years about their new products.