Core Temp is a compact, no fuss, small footprint program to monitor CPU temperature. The uniqueness of it is that it shows the temperature of each individual core in a each processor in your system. You can see in real time how the CPU temperature varies when you load your CPU.
What's new in this version:
Version 0.99.7.3 adds "Start Core Temp with Windows" feature on Windows Vista and 7 and fixes overheating protection UI bug.