a big badass gfx card wont solve all your problems ..
the system needs to fit together .. for this card you need at least a proc speed of 1 GHz and above also you need a huge amount of fast ram (512mb) and finally you need a board that can supply your card with the amount of data it needs for full performance ( AGP port speed and other things )
I for myself did upgrade dfrom a geforce 2 mx to a gf4 Ti 4200 on my system and it resulted in a huge performance boost but that is mainly cause the old gfx card was way to weak for the rest of the syxstem ..
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