NVIDIA hints at SLI chipset plans@ 2004/08/17
This confidence suggests that, just maybe, NVIDIA already has this chipset working well enough to measure its performance. Of course, we've already seen how the NVIDIA has been able to optimize its chipsets and GPUs to work together, and we may be in for more of the same with the next nForce. The Athlon 64's exceptional performance in gaming and graphics benchmarks probably won't hurt, either. I'd expect SLI-ready mobos based on the new NVIDIA chipset to cost a fraction of the price of dual Xeon boards, as well.
Once SLI arrives in force, one burning question would-be upgraders will have to debate is whether to opt for a single GeForce 6800GT card or grab a pair of GeForce 6600GTs and run them in SLI. I'd place my bets on the GeForce 6800GT being the better option all around, but folks from NVIDIA said performance between the two options was very close.