Four cores suck and heres why. If you have air comin in past your first of the four cores, the air heats up, right? Now take that warmed up air and pass it over the second of the four cores. It get even hotter. Now pass that hot air over the third of the four cores and it is way hot. Now pass that way hot air over the forth core and its not even cooling anything, in fact after comin off of the second one, over the third one, its probably not cooling, but heating it up. Thats why a two core, or the corvette one core will out-cool a four core any day of the week, any day of the year. Get a Be-Cool. You wont be dissapointed.