I'm in the process of building a new computer and got a sweet deal on a 2500k/p8p67 pro bundle from microcenter.
My intention was to sli 570s, but after doing a little reading (I'm neurotic, don't judge me) I found that a slightly more attractive option was to run a 6870 x2 and a normal 6870 in trifire (price and performance upgrade).
My question is about what affects running an x2 card, or trifire for that matter, has on pcie lane usage in a board like a p8p67 pro. I know that running two cards cuts the lanes from x16 to x8, but I can't find information about what a trifire setup like this would do.
Any information or comments welcome, thank you for your time.