It will depend on the silicon lottery too, you may get an 8350 that won't OC very far or you could get an 8320 that will easily hit 5ghz.
I used to have an 8320 that would run at 4.8ghz but i wasn't happy with the temps, i settled with 4.5ghz, that's with a Noctua NH-D14 cooler too.
My motherboard was the Asus Sabertooth 990fx.