E6600: low delta between load & idle?

[jebo_4jc]

My e6600 clocked to roughly 3.2 at 1.36v vcore (iirc) idles at about 51c. At load (2x folding at home), it goes up to around 56c. It's cooled by a Ninja.

First, these temps seem high.

Second, seems like the 5c increase in temps under load are low.

Thoughts?