We;re building a 4 CPU rack for SUPER HI-DEF, multi screen projection, for the CREED world tour, kicking off Jan 17th. I'm using the very cool WATCHOUT sw from Dataton. It's kind of like real time After Effects: lots of huge, moving, 32 bit stills, many layers, transparency, plus multiple animation codec movies, and mpeg2. No 3/d, textures/etc. The SW makers recommended GF2ultra, but that's now old news. I'd like the 8500, w/it's dual ramdecks, so I can monitor each computer backstage, plus output to projectors. but will it have the bandwidth and D-X 8.1 performance of the GF3? Which performance "spec" should I be comparing to select cards?