|To give you sim fans a small taste of what these cards can do, we used Novalogic's combat helicopter simulator Comanche 4 for our next batch of DirectX tests. Comanche 4 uses DX8 class pixel and vertex shaders to produce some of the realistic visuals used throughout the game. Unlike some of the previous tests though, this benchmark is heavily influenced by CPU and system memory performance, especially at lower resolutions. However, when the resolution is raised and anti-aliasing and anisotropic filtering are enabled, the current crop of 3D accelerators tend to slow down quite a bit.|
At 1024x768, all of the cards except for the Radeon 9800 XT when 4XAA and 16X aniso were enabled, are basically CPU limited. The benchmark results at 1600x1200 are much more meaningful. Here, without any AA and when 4X AA was enabled, the GeForce 6800 GTs outpaced the AX800 Pro by approximately 9%. With 4X AA and 8X AA enabled concurrently, the GT's lead over the AX800 is cut down to about 4.5%. Crank the Anisotropic filtering up to 16X and the AX800 Pro/TD and 6800 GTs finish is a virtual dead-heat.