I have a xfx 7770 right now and I planning to crossfire it with some other card. I came across the 7790. Some people say that you can crossfire the 7770 with the 7790 but some people say no. I am getting very confused.
AMD FX 4100 at 5.2Ghz
Some type of expensive Gigabyte mobo
850w corsair psu
corsair vengeance pro at 1.9Ghz
XFX R7770 at 1.3Ghz