That's a heck of a lot of CPU, given that you're going for 4 GB of RAM and want a $50 GPU. For gaming machines, you generally want it the other way around: weaker CPU, powerful GPU. What's your total budget, and where and when do you plan to purchase?
cpu is to powerful for ur build
get fx 6300 and a cheaper mobo with a better gpu like hd 7770 or gtx 650 ti at least
4gb of ram would be okay as it is the easiest thing to upgrade u just need to buy the same stick and add it