Different temp reading from Core Temp and CPUID hwmonitor?

stalker7d7

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Jun 20, 2010
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Running Prime95 right now to test for max heat, and I'm getting different reading from Core Temp 1.0 RC5 and CPUID Hardware Monitor.

45 and 46 from core temp
vs
50 and 51 from hwmonitor

It's always a ~5 degree difference however, which leads me to believe that they are at least accurate, but why the difference in readings? Any ideas?

This is on a c2d e6750 btw