hii i hav 1 gb nvidia 9500gt GUP can i play future games or need to upgrade the gup
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An upgrade is a good idea. The 9500GT is about the bare minimum necessary to play current games smoothly at a low resolution. Even something fairly cheap like the HD5670 will be nearly twice as powerful and give you DX11 compatibility.
9500 GT is not at all a good card, i think get a good card, for future proof games, atleast buy GTS 250.