It's realtime readings. Cool and quiet energy saving software constantly varies the speed according to the load on the cpu. You can disable it in the bios if you like. As for temps, who knows how accurate they are. A few cases have a wired temp strip that slips under the cpu or along the edge and gives you a digital readout. But you really don't need to monitor them. If the cpu runs too hot, windows will crash.
Haha I generally try to avoid crashing my computer but thanks.
The CNQ part makes sense, I considered that before I posted but how would that explain the different speed readings from the different programs? Is it possible that CPUZ and ET6 give realtime data but CoreTemp doesnt?