will a "6800GS nvidia card" greatly improve my computers performance when playing games such as call of duty and fear? ive got a 5200 i think it is currently with a p4 3.2ghz pro on dimension 4600 with 2 gig ram. would just improving the graphics card to the 6800GS make my games work seamlessly instead of jumping and stuttering as it currently does? is there any chance the dimension 4600 itself is just too slow for new games now or can it be upgraded as easily as any pc?
thanks