I am planning on building a gaming rig. I want it to be SLI capable (GTX 460's) so when I have more money I can buy another GTX 460 (instead of just the one). The problem is that u read a review on newegg stating that the Intel Core i5 760 will make it so that I only have 16 lanes for PCI, meaning I can only do x8 x8 in SLI rather than x16 x16. Is this correct? And if it is, dies it really make a huge difference (x8 vs. X16)?
There is a small difference in performance between full x16/x16 and x8/x8 SLI. The actual difference varies between games.
The ability to use SLI and the performance gains far outweigh the few percentage points difference between x16/x8 modes IMO.