Hi all. I'm new to the forum and to pc (hardware) stuff in general. So I'd like to upgrade my graphics and I had heard of crossfire. I have an HD 7700 series GPU. Should I get a second one for crossfire or get a newer better GPU? Also, I think that my motherboard only has 1 PCIe slot for a GPU and it's already taken, so I'd need a new motherboard as well I guess for crossfire. I'm probably missing some stuff so feel free to point out anything you want! Thanks in advance.