The Benchmarks: OpenGL Performance - Quake III Arena
Nobody can deny that Asus seems to have the very best engineers. Dominating Quake III as well, the Asus has proven to be the clear performance winner of this review. Once again Q-Lity is able to score very well with their P3V-T.
Quake timedemo seems to be the best benchmark to spot even tiny performance differences. I ran the benchmark several times each, giving all boards the chance to perform as best as possible. The difference between the lowest and fastest 693A motherboard is smaller than 4% (again except Shuttle).
Taking a look at the differences among the 694X boards, they are clearly larger (about 15%). This is clear proof that there's still a lot of margin for performance improvements.