Learn how to oc.its simple and easy.
if u oc 3570K 800mhz.now its 1ghz faster then 3470.
1Ghz really help in gaming compare to 3470. think .
its like not only u r butget.
the 3470 will perform exact the same as the 3570k perform , and wouldn't notice any change unless you overclock it at 4.0ghz ( Minimum ) , but the 3470 don't have this advantage "overclocking"