i can confirm that unlocked APUs has pretty the same frequency limit of the locked ones, obviously they are easyer to tune for the best cpu/ram frequency...big gains are on ln2 where the big limit is from the locked multiplier..this APUs are capable of easy 170/180mhz bus so with max 29x multi on the A8-3850 the maximum frequency doable is around 5/5.2Ghz...with a 3870K you can easy go past 5,6ghz...