we have 4 parts to our puter cpu, mem, motherboard, and vid card, okay 5 add sound card.
when i used by gateway it was a dog. fine for work but it simply did not keep up with the other fellas.
got a p4 2.66, 1 gig of cheap 2600 ddr, ti4200 two steps below nvidia hottest card at the time, and just recently left onboard sound for a santa cruz card and picked up 10 fps.
it works great. built it myself. way way cheaper than buying one.