go with real temp is what i would do and i have found that these atom chips run cooler when there voltage is maxed out don't ask me why this is i have no clue just found this on several that i have owned and one's sold to clients. fyi there only dual core with HT so reading temps from cores that are not real is not possible
Intel® Atom? Processor 330 - SLG9Y
and just to let you know these chips always run pretty hot anyway but it does not matter look at the max
great little chips. jmo
I had more problems with the intel boards then with any of the cpu them self even after removing the fans ha ha then they run hot. testing to see if they would work this way
EDIT put it under full load and see your temps are. It's calibrated to be most accurate at thermal max