NVIDIA's SLI - 6600 GT Performance and Conclusion
In the first two parts of our NVIDIA SLI coverage, we've looked at how SLI works, the two rendering modes, how a pair of 6800 Ultras and a pair of 6800 GTs perform, and answered just about all the questions you might have about SLI.
Today, we look at bringing SLI to the masses, with tests on a pair of the cheapest SLI capable cards: 6600 GTs, along with some PSU testing to see just how much of a strain a pair of new NVIDIA cards will put on your power supply.
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It's taken me until the end of this third article in our SLI series to get to any kind of large conclusion on SLI as a whole. My overall impression of just the technology is one of excitement, and also admiration that NVIDIA have it working to such a good degree with the majority of applications. Multi-GPU 3D acceleration is not a trivial problem to solve, especially in the load-balanced SFR case, with it only really working across the board if you throw the AFR mode at everything. And even that has its problems.
Read the review here.