When building a complete system the choice of the components of course is very important. Many concentrate on picking a good CPU and video card but forget that the road to a stable and fast system starts with the motherboard. If you plan on building a system for two video cards the choice is pretty simple; a motherboard using NVIDIA’s SLI-technology or a motherboard using ATI’s Crossfire technology.
If you’ve been looking for the definitive multi-GPU article, then this collection of 8 or 9 will be worth reading. You can check out part 3 of this series over at Bjorn3D.