Need some clarification? Mobo at 16x/8x?

[radiowars]

I've been looking for a good i7 rig, and I keep coming back to the Evga x58. It has great specs, but it doesn't have "true" 16x 3-way SLI. Would it really affect gaming if you had 2 cards at 16x and 1 at 8x?
Also, if I'm running 2SLI will that be at 16x?
Thanks guys, TH's forums are a great help

 

[Ancient_1]

I don't know how it works on the evga but on my DFI 2-way with the 3rd x16 slot empty will run 16x 16x but if the other 16x slot has any card installed it will run 16x 8x.
Going 3-way it will run 16x 8x 8x. I think most boards are similar that gon't have the nvidia 200 chip. [H] did a test with 3-way both ways and found no advantage to having 16x 16x 16x over 16x 8x 8x.

 

[baddad]

The EVGA motherboard is good and when you have three cards in it, it will most likely run the 8x card as a PhysX processor. I don't think theres a card out there that has overcome the 8x bandwidth anyway.