Which GPU gets bottlenecked by PCI-E 3.0 x8 vs x16 ? Is any of them even bottlenecked ? : r/buildapc
What does PCI Express 2.0 x8 mean? Is this okay for gaming? - Quora
GPU running at x8 PCI-e instead of x16. GPU is seated in the 1st slot, tried seating in 2nd slot, then its running at 4x. Tried reinstalling drivers, tried adjusting some settings
Titan X Performance: PCI-E 3.0 x8 vs x16 | Puget Systems