Is there a difference between the radeon xfx 7870 "only one fan" and the radeon 7870 GHz edition "top is red and black"? Im asking because I can't find much on any of these two video cards. Maybe im just bad at looking but I'll leave it to the pros. I had the GHz version the one that has a red and black top but had to get it replaced and got back a xfx 7870.