The gt 610 sucks. According to benchmarks, the x1950 pro better than the gt 610. Just stick with your old card until you can get something more expensive.
IF you are considering spending more. Get the radeon 7770. Its only around $110 with shipping and after rebates and will play any older game on max. Plus it will completely destroy those other 2 cards.http://www.newegg.com/Product/Product.aspx?Item=N82E16814202011
Btw how much are you getting the gt 610 for anyways?