I don't know on older cpu but i noticed ivy bridge is very dynamic with temps registered . Evne at stock clocks you get spikes and sometimes in odd times (IMO ) . I noticed during some games I get spike in GUI of game or when not in actual 3d action . And of course you see temps vary according to load and size in something like prime95 .
I use OpenHardwareMonitor which has graph plot and max spike is always higher than avg high temp core runs by like 5c or so (this on stock or just slightly OC with 3570k ).
I guess the faster the polling in the graph it might pick/show it on graph if it was fast enough .
I never noticed such dynamic temps with older cpus like core due , or older cpu's , probably has to do with speedstep and turbo being so dynamic .
I use OpenHardwareMonitor which has graph plot and max spike is always higher than avg high temp core runs by like 5c or so (this on stock or just slightly OC with 3570k ).
I guess the faster the polling in the graph it might pick/show it on graph if it was fast enough .
I never noticed such dynamic temps with older cpus like core due , or older cpu's , probably has to do with speedstep and turbo being so dynamic .