I have decided to buy a gpu for my pc. I have a motherboard of gigabyte H61M-D2H ( http://www.game-debate.com/motherboard/index.php?mot_id=1401&motherboard=Gigabyte%20GA-H61M-D2H ) . I want to know that if i go for R7 260 or NVIDIA GTX 660...would my motherboard support the gpu? If yes please explain.