I'm not sure you've got quite enough there to achieve what you're looking for. Others on here will tell you you'll get more from an Intel i5 - but you'll also pay quite a bit more. My son has a similar AMD processor for e.g. Skyrim, Planetside and so on and gets on fine with it. I think you need to budget more for your graphics card - that one is distinctly mid-range. For another £40 or so you could get e,g, a GTX660. I'm guessing - and it's a total guess - that the system you've configured will give you around 20-30 fps at max resolution. Up the graphics card by about £40, and you'll probably get mid-40s fps. To achieve what you're looking for, you'd probably need to spend about twice as much on the graphics card.
Others on here are more knowledgeable about gaming PCs, though.