Test fit with the XFX Double-D R7870 Black Edition. I LOVE this GPU. The build quality is really nice, and the aesthetics of the card really take it to the next level. I've got about 2.5-3.5mm clearance between the top of the GPU and the NT-06 PRO. I believe that some mITX boards like the ASROCK Z77E have slightly less clearance but still work without blocking the PCIe slot.