William Henrickson :
With the caveat that theres no SLI its the only option in the world to get the full speed unless you use a card adapter.
Does he have the 4 series CPU already? It seemed implied.
actually it is worse than that ... any card you plug in PCIe 3.0 even if 1 lane , will make the GPU switch from 16x to 8x
there are tons of cards one can add ..
TV cards , SAT cards , USB 3.1 cards , Raid Cards , sound cards , Video capture cards , Wifi Cards , Lan cards , Blue tooth , ... Thunderbolt cards , display port cards , any new tech cards that will appear ..
the fact that the CPU has only 16 lanes is horrible , one lane missing the GPU will switch to 8 lanes , becuase they dont switch lane by lane or even 4X by 4X , they go down from 16 to 8 ...
thats why I never got for me less than 40 lanes CPU from the old times of SandyBridge .. the "X" chipset ALL the TIME for me.
and I am not talking about the OP , I am talking about you wanting Extreme 6 ...