Hi guys, i have a radeon xfx r9 270x double d and i want to get a pentium g3258. But, i dont want to spend a lot to a motherboard and i would like to take a h81 chipset. Will the pci express 2.0 bottleneck my r9 270x. I think r9 270x's bandwidth is 5.6gb/s and pcie 2 x16 is 8gb/s am i right?