Does the MSI Afterburner shows correct readings??

Aug 25, 2015
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While in game its shows my cpu core usage like....core 1 90%(52°C), core 2 27%(48°C), core 3 3%(46°C), core 4 3%(45°C). After closing the game when I immediately open Real Temps I get this readings..core 1 41°C, core2 40°C, core3 39°C, core 4 41°C. So how these readings are different by that much????? Any idea???