Stop the personal attacks. I have made no mistake, it's 100% fact that a current gen single graphics card does not saturate the PCI-E 2.0 x16 bus. End of story.
Also not what I said.
It's laughable to even suggest that a 6fps increase (according to your article) would be worth a 600-700 dollar extra investment lol. 100 bucks a frame/s. Maybe that's a great deal to you who knows
Yeah, that's what I took away from that article. /sarcasm
If you look you will see that the very same socket that Delirium is using is represented by the 990X. You will also see that the performance is very game dependent. Bioshock, for instance, nearly doubles in FPS with SLI. Yet, the real story has nothing to do with SLI, but how capable the 1366 socket is. Most of the MBs made in this world only support 16 PCIe lanes. So if you SLI one of those boards you are still left with 16 PCIe lanes. The 1366 and 2011 support 32, and 40 lanes respectively. So, guess what happens if you have an LGA 1150 board with a GTX 680 plugged in, and then add an x1 audio card?
I have actually built a Quad SLI system and I have seen PCIe 2.0 saturated while switching to PCIe 3.0 doubles the fps.
Nvidia themselves made the same comment I did about the GPUs ability to saturate even PCIe 3.0. These cards are designed to work smoothly rather than saturate your board, which is why they do not.