Did you know, that CUDA is NVIDIA's name for a GPGPU. The acronym actually stands for Compute Unified Device Architecture. The CUDA marchitecture is apparently a fundamentally new computing marchitecture for the GPU to solve complex computational problems across consumer, business, and technical industries. At least that is what NVIDIA says about it. And CUDA demands a dual GeForce 8950 GX2 as this means more computation power. NVIDIA entered this market later than ATI but it still has a lot of success as it has G80 that can do a lot of pixel and shader operations. And, the G80 is still the fastest graphics chip on the market. - The Inquirer

NVIDIA beavering away on GeForce 8950 GX2 card

The G80 has 128 shaders and can process a lot of pixels. Therefore it is good for GPGPU or CUDA calculations as these science calculations are run on a graphics card disguised as small shader programs. As the G80 has 128 shaders and apparently the GeForce 8900 GTX is supposed to have 25 percent more shader power, the new GeForce 8950 GX2 card should provide a lot more shader and pixel power. The card is demanded and we believe that NVIDIA already has the design but we don't know about any possible announcement. It might be holding it back until ATI releases their Radeon X2800 series.

If NVIDIA ever sorts out its quad chip driver this means Quad G80 could be on the horizon or however they later call this product. Yeah, graphics chips these days are big, hot and crazy.