From what I can see http://ark.intel.com/products/51998/Intel-Desktop-Board-DQ67EP
it has 16 PCI-E 2.0 lanes. It's an older PCI-E spec but it should be fine.
Right but if you scroll down to the Expansion options it says "Max # of PCI Express lanes" 1. However thats just the system bus, The CPU yes should provide 16 PCIe 2.0 lanes which go to that GPU slot.
EDIT: and I wanted to point out, doesn't really make sense the Q67 should have 8 PCIe lanes, but maybe the SATA ports and other system devices take up some, however that board only has a GPU slot so it doesn't really matter anyway.