Futuremark 3DMark06

As opposed to 3DMark05, overclocking the Radeon X1800 XT brings about a bigger effect in 3DMark06 and helps the ASUS card score over 4000 points, although it still cannot rival such solutions as Radeon X1900 XT or GeForce 7800 GTX 512.

The ASUS EAX1800XT TOP graphics card is closer to the leaders in the SM2.0 tests where it enjoys the biggest boost from overclocking and finds itself just a very little behind the Radeon X1900 XT and GeForce 7800 GTX 512. This seems to be the result of the benchmark’s using rather simple shaders that fit within the Shader Model 2.0 framework. Moreover, the second SM2.0 graphics test depends greatly on the vertex processor performance, and this may have affected the overall result, too.

Quite expectably it is the Radeon X1900 XT that wins the SM3.0/HDR tests – the power of its 48 pixel processors is not to be underestimated. They are called for in this test, especially in the airship scene.

Despite its higher memory frequency, the ASUS EAX1800 XT TOP falls farther behind the Radeon X1900 XT as the display resolution grows up. The smaller Z-buffer and the lack of Fetch4 support drag the ASUS card down here. On the other hand, the GeForce 7800 GTX 512 doesn’t need any of these features as it has 24 TMUs and high-performance memory instead; it is just a little behind the Radeon X1900 XT in high resolutions and is in the lead in low ones.

The Radeon X1900 XT is not so far ahead of the ASUS EAX1800XT TOP in the second graphics test whereas the GeForce 7800 GTX 512 is not such a confident leader in high resolutions anymore. We can rather say it is roughly as fast as the two solutions on ATI’s chips there.