picCOLOR, Movie Maker 2.1, WAV, CINEBENCH
picCOLOR v4.0, amazingly enough, runs almost identically on all four boards. EPoX's 9NPA+ SLI retains the smallest of leads over ABIT's Fatal1ty AN8 SLI.
In some applications AMD's S939 CPUs are better, in others Intel's LGA775 are. What's abundantly clear, however, is that EPoX has performance nailed down.