Almost in all work modes and resolutions the high-end graphics accelerators get held by the system CPU. Only in 1600x1200 with enabled FSAA and anisotropic filtering we can see some results: CrossFire platform falls a little bit behind a single GeForce 7800 GT: the performance gap makes about 3%-5%.
The same is true for the d3_c17_02 level. However, here we see that a team of two RADEON X850 XT graphics cards working in CrossFire mode gets about 2%-3% faster than GeForce 7800 GTX. As for the overall CrossFire efficiency, the performance improvement is not very high and doesn’t exceed 20%-22%. The maximum performance of 88fps cannot be achieved even in multi-processor mode.