Your processor should be a bottleneck for your graphics card. A bottleneck means that a piece of hardware in your computer is holding back the performance of other parts of your computer. In this case your GPU would be bottlenecked by your processor since an FX 4100 isn't that great for gaming. If you were to compare the performance of your computer towards another computer with the exact same parts but with an i5 processor then you would see that the computer with an i5 would outperform your build. Your current processor should REALLY bottleneck your processor and you should consider upgrading to something like an i5 or at least an fx-8xxx processor.