I couldn't give any opinion on the Gigabyte one, but having owned a 7950 (with the same DD cooler), I'd say steer clear of those XFX ones. The cooler is like a jet engine taking off.
People said that the reference coolers on the 760s were loud, but after getting them, they're like a gentle whisper in the ear compared to the XFX cooler. It really is just so freaking loud.
Video showing noise of XFX cooler:http://www.youtube.com/watch?v=4-NKxmO5dkQ