I'm assuming this is a budget build, and if you are already at the roof, there is not much you can do, but the FX-4100 is a processor I would really not recommend. Even the dual core i3's beat out that CPU, if you can extend your budget a little more I would on the processor. If you can extend your budget just a tiny bit more, you can get a FX-6300 for around $110, or an 8320 for around $130. These CPUs would be a LOT better than the 4100. They have more cores, and a better architecture.