it will be too huge I am afraid. it won't get to the gpu reactor but you wont be able to use large ram sticks like kingston hyperx, corsair vengence , g.skill ripjaws.
I have the maximus IV gene/gen3 which is exactly the same size and I am using a cooler master hyper 612pwm, gtx 670 Direct Cu II top and kingston hyper x ram. The only catch is I had to mount the fan to the opposite side of the cooler. This does not affect the performance at all and I am still able to overclock 4.9ghz 24/7. The good thing about the coolermaster 612 is you can mount the fan facing whichever way you want. Noctua nh-c14 doesn't have that option. So you have to get low profile rams.