[Syonyk]

The metric being discussed relates to how much thermal energy you get for a given electrical input.

If you put 1000W into a Bitcoin miner, computer, resistive space heater, etc, you get 1000W thermal out.

If you use that 1000W to turn the compressor in a heat pump, you get far more heat out (3-4x is a reasonable average in a lot of areas), because you're not simply generating heat from the energy - you're using the energy to move heat. A heat pump is an air conditioner in reverse - you cool the outside air and heat the inside air.

A standard CPU dissipates heat as a resistive heater would - you pump 100W into the CPU, you get 100W of heat out. I'm not sure what you're using to claim that a CPU "is literally a heat pump" here - it's not, by any standard definition of a heat pump.