I would estimate a 15-20% increase in overall PC
performance if you doubled the RAM to 512mb and probably a 20-25% increase in overall performance if you quadrupled to 1024mb.
There are massive differences in graphics cards - generally (although not always) laptops are designed for business applications and the graphics card is not that good.
This may be your problem. Also, some graphics cards "eat" into the normal system RAM - so you may think you have 256Mb, but your graphics card is using anything up to 64Mb of this - meaning you have less than 200mb to play with. If your laptop does this - and it has windows XP
- believe me - PUT MORE RAM IN
. I recently upgraded a laptop (similar to the one described above) and it increased it's speed by (I would estimate) 80%
Hope this helps
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