Which Computer would play games better?

none of these computers even have graphic cards, theyre all integrated. if you know anyone smart enough to build a computer from newegg.com, the prices are half as expensive and you get way better quality. but the top computer is almost exactly the same as mine and i can play WoW on medium settings. PC3 would only be able to play Halo CE well, unless you go back to XP. the geforce 7100 is terrible and the 8200 is only slightly better.