I have an MSI 870-G54 Motherboard and just upgraded my video card to a GEForce GTX 960 which solved the stuttering problem I was having in games but my CPU is a wimpy AMD Phenom 3.10GHz Dual Core and I want to avoid upgrading my motherboard if I can help it. Most of the motherboard/cpu combos I've seen limit the amount of RAM slots (also trying to avoid having to buy new RAM). Any advice on a better AM3 CPU would be awesome.