In regards to the 40 lanes providing 16x,16x,8x in Tri SLI....
Remember, that's pcie 3.0 at 8GT/sec natively, not 5GT/sec in 2.0, so that's more like 25.6x, 25.6x, 12.8x in pcie 2.0 terms, theoretically. Even 8x 3.0 is more like 16x 2.0.
In other words, there is not a card out now that...