asus p8h61-m lx3 r2.0

I recently upgraded to a 470 from GTX 660 and while going through Gpu-z i saw instead of Pcie 3 it was shown as running @ x2 1.1 and in hwinfo Pcie 3 (8GT/s ) @ x2 (5GT/s). This mobo has Pcie 3 advertised but in actuality does it only have 2.0 ? If it is does will it have significant impact on...