“When I reviewed the AMD Radeon HD 6990 for the launch event two weeks ago, I genuinely liked the card's ability to produce unmatched performance using the sheer strength of two top-end GPUs. NVIDIA answered back with a product just as powerful, but refined so many of Gemini's smaller details that the scales now tip in their favor.
But unfortunately for the Radeon HD 6990, modern graphics cards are capable of a lot more than simply producing frame rates. Consumers are looking at supplemental features, such as stereoscopic 3D functionality, graphical enhancements, affordable multi-display possibilities, broad software support, and stable drivers. NVIDIA 3D Vision, APEX PhysX, The Way It's Meant to be Played developer support, surround support with inexpensive DVI monitors, and Forceware drivers all deliver these things. AMD's solutions are either not widely supported (DisplayPort), unpopular (AMD HD3D), or lack affordable integration (Eyefinity).”