Help me to choose a graphic card for rs.4000

dilrox

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May 26, 2011
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Hello experts,
My PC is of following specs,
Pentium E5200 Dual Core 2.5GHz
350W PSU
2GB DDR2 Ram
17" LCD,
I had bought an 8400gs 1024mb ddr3 graphic unit. But it is awful. My pc restarts when it overheats. So I have decided to update to a better unit. My needs are to play games like Crysis 2, Dirt 3, GTA 4 etc in good quality. Can anyone help me to decide a good graphic card. Which one is better? ATI or Nvidia? My budget is 4000. Please help me experts. If u cn help in the case of 8400gs, its most welcome.

Thanks in advance