FX 8350 is the best current AMD option, and it's not the greatest in certain games like Fallout 4 due to its poor single threaded performance. AM3+ is on the verge of being retired, and you probably shouldn't go for an AM3+ build at this point in time. For Fallout 4, an Intel system with a Core i3 6100 would provide better performance while coming in at a similar price unless Intel CPUs are massively more expensive than AMD equivalents in your region.