3DMark06

The X1900 GT affirms its ability to match up well against the GeForce 7900 GS—and the 7900 GT—by sweeping the 3DMark06 overall score across all four resolutions. The X1900 GT is faster in four of 3DMark06's four sub-tests, the lone exception being Graphics Test 1, where the 7900 GS leads by less than one frame per second.

See, I told you it was complicated. Despite having 36 pixel shaders processors and a higher clock speed, the X1900 GT is edged out by the 7900 GS in 3DMark's synthetic pixel shader test. This is just one test, but it demonstrates the difficulty of handicapping shader performance by looking at specs.

The X1900 GT turns the tables in the vertex shader tests, helped in part by its eight fully-functional vertex shader processors.