Tom's Hardware Guide has posted an article on the SLI feature of NVIDIA's GeForce 6800 GPU

NVIDIA's GeForce 6800 processor lets you double your graphics fun. By incorporating SLI (Scalable Link Interface ), a mobo with two x16 PCI Express slots and two GeForce 6800 cards makes it possible to harness the power of both graphics cards at once. Yes, Alienware has already put its dual-graphics card stake in the ground, but NVIDIA has taken a far different tack.

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