Warhammer 40.000: Dawn of War
Besides rather complex geometry (2,000 polygons per model, over 100 models per frame), the Dawn of War engine uses fixed TnL functions, stencil shadows and high-resolution textures. As a result, GeForce 6/7 based graphics cards suit ideally for this game because they provide high fillrate, emulate TnL efficiently and process stencil shadows very fast. Unfortunately, RADEON X1600 XT cannot boast any of those features, even though it can process twice as many Z values per clock. In pure speed mode its higher working frequencies and 5 vertex processors help it to compensate the bottlenecks we have just mentioned, however, even in this case its minimum performance is still extremely low: 16fps in 1024x768. For comparison: the minimum performance of GeForce 6800 doesn’t drop below 25fps even in 1600x1200.
As for the eye candy mode with enabled FSAA and anisotropic filtering, the situation turns out even worse for RADEON X1600 XT: it outperforms only the good old buddies RADEON X700 PRO and GeForce 6600 GT. And forget about comfortable gaming experience here.