Right now it's in the pcie 3.0 x16 lane, but because I bought a big ass cpu cooler, the phanteks that resembles the noctua nh-d14, I can't install the cpu cooler bc my gpu is humungous. Well they both are. So, in order to install the cpu cooler and have enough clearance, I need to move the gpu to a lower slot. In conclusion, as the title asks, will the pcie 3.0 x8 lane be enough? Right now I have overclocked my gpu to around 1360mhz core and 7100 memory with the core voltage bumped to +93, memory voltage to +100 and auxiliary to +50. Fan speed to manual 55%, temperatures around 66-67c for all in heaven 3.0 maxed(gpu, vrm, memory is less than that).