Game Test 4: Mother Nature
ATI RADEON 9800 Pro and RADEON 9700 Pro retain their excellent performance level with enabled anisotropic filtering and not very high performance level with enabled anti-aliasing.
However, when both these functions are enabled simultaneously, ATI solutions perform as fast as NVIDIA solutions.
As for the performance difference between NVIDIA GeForce FX 5900 Ultra and NVIDIA GeForce FX 5800 Ultra, nothing new can be found here. NVIDIA GeForce FX 5900 Ultra is much faster than the predecessor when FSAA is enabled. However in case of anisotropic filtering the gap is no longer that huge.