Opterons are Server designed. they can handles a lot of hard web work and all that. Could do games...Althoug, 2 Dual core 4800+ Will pwn every games you have
WEll, opteron's are massive server cpu's. Dual core's are just regular user ones, but the 4800+'s will do a similar job to the opteron's. If the price isn't too much different, I would so go opteron's, although the architecture of the 4800+ will probably fair better in games.