Well............yes.
A intel dual core.........desktop processor is hard to keep at optimum operating temp generally.
I find that the laptop versions do not have a problem. But the desktop versions......above 2 Ghz are tough to keep from overheating. A lot of poeple end up putting liquid cooling systems on them or trading them off. That has been my experience.
The next generation.........The core 2 duos have less problems in that area in my opinion.