Well , I don't know what's the price for Core i3 vs FX-4300 in US/Europe
but at least in my home town (Hong Kong)
FX-6300 sell just a tad more than Core i3-3220 and it offer much better multi-thread performance IMHO

AMD 4-Core FX-4300 3.8GHz/12M CPU [AM3+] FD4300WMHKBOX [Black Edition] HK$ 927
AMD 6-Core FX-6300 3.5GHz/14M CPU [AM3+] FD6300WMHKBOX [Black Edition] HK$ 1013
Intel Core i3-3220 Ivy Bridge (3.3GHz, 3M Cache, LGA 1155) CPU BOX HK$ 954