ATI claims its Crossfire Multi VPU technology will be compatible with all games and feature increased performance for all current games, something which is not the case with NVIDIA's SLI.
Compared with two 6800 Ultra in SLI, ATI's Crossfire should end up about 10 per cent faster in 3Dmark05 benchmark, about 30 percent in Splinter cell C.T game and more than 60 percent in Need For Speed Underground 2 game. ATI is talking about results gathered from testing SLI and Crossfire platforms on 1600x1200 resolution, with 4X FSAA and 8X aniso, Athlon 64, 1GB DDR 400 memory, RD480 motherboard with 8.151 driver. ATI used two X850 XT Crossfire cards versus Asus SLI Deluxe board, 71.89 drivers, and two 6800 Ultra cards in SLI.
By the end of next month ATI will send out test versions of systems with its Multi VPU. Read more at The Inquirer