"That considered you can see why it would not be farfetched for current "Conroe" core motherboards to be able to handle Penryn, when you also keep in mind that most of those motherboards have power designs capable of handling older Prescott core Pentium 4 processors that press huge power loads.

Penryn will also bring with it advancements over Conroe that would be better considered extensions of the Conroe design enhancing caches and logic."