Well I bought 3 at once from Fry's (the fourth I get to get from Newegg) so I didn't even test single/dual cards
I can run a series of benchmarks for people, I just need to know what all to run and in what configurations, see the i7-3930K build in my signature to see my hardware, I can go anywhere from single to surround setup and 1-4 cards in various SLi states. I can also apply and remove the PCIE 3.0 hack to show those changes.
I put that statement up to Tom's Hardware's contact us link to see if they wanted me to run anything for them (since they only went up to Tri-SLi in their configs).
I should also mention, the board (Asus Rampage IV Extreme) will run the cards in the following configs:
1 card: 16x __ __ __
2 cards: 16x __ 16x __
3 cards: 16x 8x 8x __
4 cards: 16x 8x 8x 8x
So the suction isn't a problem until you get to 3/4 cards.Edited by Jothay - 9/17/12 at 1:06pm