Performance in Semi-Synthetic Benchmarks

Aquamark3

Aquamark3 is not a representative test anymore when it comes to ultra-high-end graphics solutions, especially multi-GPU ones. That?s why it?s normal that both the CrossFire platforms and the NVIDIA SLI deliver almost the same performance, with a minor advantage on the part of the former.

The lower-performing graphics memory subsystem is the reason why the GeForce 7800 GTX SLI loses to the Radeon X1800 XT and 1900 XT CrossFire in the antialiasing modes equivalent to 8x FSAA. The results of the two CrossFire platforms are roughly the same due to the identical texture sampling speed.

The same can be observed with the extreme antialiasing modes, but the performance of the GeForce 7800 GTX SLI is even lower here due to the use of true super-sampling.