The performance of the GeForce 6600 GT is comparable to that of the RADEON 9800 XT; that’s an achievement for a graphics card with a 128-bit memory bus, especially considering the high pixel shader performance of the ATI chip.
We should explain that we always choose the most efficient rendering method for each graphics processor, so we select the Shader Model 3.0 path for all cards of the GeForce 6 architecture. It certainly gives them a small speed bonus.
The GeForce 6600 GT is slightly faster than the RADEON 9800 XT here. This is again an excellent result, considering the higher load (full-screen antialiasing and anisotropic filtering) on the memory bus in this mode.
The GeForce 6600 GT loses the lowest resolution to the RADEON 9800 XT, but then the two are racing neck and neck. The GeForce FX 5950 Ultra suffers a defeat, “thanks” to its inefficient architecture.
The eye candy mode on the Research level proved to be a hard nut for the GeForce 6600 GT to crack. The RADEON 9800 XT makes a good use of its 256-bit memory bus and efficient memory bandwidth utilization techniques to achieve a better result.