How powerful does a processor need to be in order to web surf? The best way to look at this is to see what you are getting for ~$60 USD. A CPU, a Motherboard, Soundcard, Video card and a Ethernet card. On a $300 USD budget for a machine that cmccmc said would be for web surfing, that leaves you to spend $240 USD on other things like a Case, Drives, RAM and a power supply.
Even a cheap little AMD LE-1640 build would have you spending more, and for what? O_o.
Even a cheap little AMD LE-1640 build would have you spending more, and for what? O_o.