Thats a 4870. A very nice card indeed. Comparable to a GTX 260. Basically if you have heard of crysis you can play that on high if you wanted to.
Edit: Coldxwar please include the chip type in the display tab of dxdiag. The cpu and ram is good for you too. And considering you have direct X 11 you should have one of the newer cards anyways but include it in anyways so you could know what ur gpu is





