Pcie lanes /w graphic cards. (SOLVED)

uh jeah hi, i'm a little confused, since i am planning a build with double gtx 970s and i'venoticed that most motherboards I found that one pci express lane is 16x and the second is 8x. And i have NO IDEA what that means, I know that 16x has more bandwidth, wich means faster data-speeds, than the 8x.

So if i have dual GPUs, one in 16x and the other in 8x, would they both run in 8x? and if so is it that noticeable? does that have so big of an impact?

Not really no, since most x8 lanes are not saturated.


Thank you sir, you have provided an answer to my problem. Have a nice day :D