No. To put it simple processor is an copper wire. Through that copper wire electrons travel which is called electric current.
The copper wire is very very thin and any current is big enough to heat those wires.
Transistors inside the core direct voltage (and thus current) to different routes, depending on how much the processor is
used at the moment. So the MAX electricity consumed = TDP
You are right on one thing heat is ALWAYS side product of any electrical product. Think electrical engines an their efficiency.