Can someone explain what causes extra heat in a CPU

Posted by BlueTrin on Super User See other posts from Super User or by BlueTrin
Published on 2013-07-02T11:05:40Z Indexed on 2013/07/02 11:08 UTC
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I have a hardware question about CPU and chips in general: what is causing the extra heat when CPUs are busy doing computations ?

I thought that the CPUs would have a way to throttle themselves when they are not busy but it seems that only applies to some mobile CPUs, so my question is how do CPUs manage to generate less heats when performing less computations and what causes the heat in the hardware when the workload increases ?

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