Hard to compare it exactly because it depends on the CPU, airflow, what kind of rpm you like to reach (silent or not silent) and so on. But i would not say more than 1-2° with the same radiator size and the "same fans". But Eisbaer Pro has much better fans included than the normal Eisbaer. If you put the Alphacool Rise fans on a normal Eisbaer Aurora, you will increase the performance also at same rpm.