okay so the extreme 4 will probably overclock slightly better yes? and i am plenty okay with the. i am honestly fine with the thickness also as i can just grab on to the edge of the board for more support. also, i looked at the specs and it said the two pcie runs at 16x/0 or 8x/8x does that mean they will both run at x8? plus i noticed this is the same when you look at the extreme 6. one more thing is i am not looking at the top of the line gpus, i am looking at the 7850, which i am sure can not utilize the full bandwidth of pcie 3.0, plus if i did get a better card (7950-7970) i would not need to crossfire, that is a definite, plus i would need to upgrade my psu, so if the x8 speed only affects the really good cards i should be fine right? please correct me if i am wrong