DjMcTurtle

What should I upgrade in my computer, and what would you recommend in the 100-200$ range for an upgrade? The only times I have problems with FPS, is mainly in some Wastelands servers, on certain ones with around 40-50 players I can get around 20-25 FPS But other ones I get around 9... (Even if I switch to low and have a good connection to the server) I can play on High setting in single players, and sometimes on medium in multiplayer. AMD Phenom II X4 940 4.01 GHz Motherboard is a Asus M3A79-T Deluxe 6 GB ram ATI Radeon HD 4870 1gb Video ram. 64 bit OS, Windows 8. I was thinking about getting a GTX 660 or a AMD Radeon HD 7870 just not sure if they were compatible with my Motherboard.