You got plenty of RAM. I'm curious why your benchmarks are so low though. When you do the Windows Experience Index, tell us what you're scoring on everything else. Well, I mean it says unrated so either you've never done it or not done it in a long time. Your processor looks just fine to me too. But the rating on your video card can really bring down your average benchmark score.
Go to Start and type in dxdiag in the search field and hit enter. Let the thing load and then click on the tab called "Display" or "Graphics" (you can't miss it), and there at the top your card should be mentioned under Name.
This should help for comparison, if you didn't already read it. I would then Google benchmark tests for the graphic cards on that list and compare the specified results with benchmark tests for your graphic card.
I think your computer should be able to at least run it at mid settings since it's being developed to run even on low-end semi-modern computers.