They have done benchmarks, long story short there is little to no difference. And no there is no board that supports the 8700k and has pci-e 4.0So...just got a 30 series card and noticed it supports PCIE 4.0 but am running on a 8700k sure it works but not at its full potential, is there a chipset out there that can bridge the two together, and support both 8700k and PCIE 4.0?