We see pretty good results in F.E.A.R.: GeForce 7900 quad SLI manages to outperform GeForce 7900 GTX SLI in FSAA 4x mode already. It gets about 25% faster Radeon X1900 XT CrossFire yields to quad SLI system, but also demonstrates pretty decent results. In some complex scenes, the performance still drops below 25fps though.
When we switch from FSAA 4x to FSAA 8x, GeForce 7900 quad SLI remains the only graphics system that can provide acceptable performance in 1600x1200. We cannot say the same about Radeon X1900 XT CrossFire, although it gets noticeably ahead of GeForce 7900 GTX SLI in this mode.
GeForce 7900 Quad SLI cannot outperform Radeon X1900 XT CrossFire despite the four graphics processors working altogether with FSAA 16x activated.
Quad SLI demonstrated 40fps in 1280x1024, which is a pretty good result for SLI AA 32x mode. However in 1600x1200 the performance of the quad-GPU system is only half as fast. In other words, we do not se any real advantages of the top anti-aliasing mode once again.