You can overclock the Barton 2500+ to a 3200+ with a simple FSB overclock from 166MHz to 200MHz, make sure if you do that to bring the ram timings down to suit as memory overclocks automatically when the FSB is increased. But memory as has been said should help increase gaming smoothness but your frame rate will remain the same. So if choppy game play is your problem them memory will help, but if it is a simple fact that you are not getting enough frames through to play then the memory will do nothing but cost you money and drain more power from your plug.
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