so i found this review of quad sli and its worse than a x1900xtx crossfire. I was wondering if anybody knew why its so much better, grr not to mention i started investing in a quad sli system QuadSLI_vs_Crossfire
I would wait until drivers are mature enough to get the best from a Quad SLI setup. Then you can compare the results, they looked a bit dubious anyway.
Just like how SLI doesn't always benifit some games quad SLI won't fare any better, if the game doesn't take major advantage of it then you probably won't see any real improvment. Certain games probably do will with ATI cards to begin with and therefore can benifit from the get-go. Doesn't the CPU bottleneck a quad SLI setup anyway? I'm not really up with the technology myself.