Right. In CPU scheduling this is the “race to idle” idea. Sometimes it’s more efficient to run a task at full CPU power for 25ms than low (non-idle) CPU power

Right. In CPU scheduling this is the “race to idle” idea. Sometimes it’s more efficient to run a task at full CPU power for 25ms than low (non-idle) CPU power 100ms. It wouldn’t surprise me too much if the 4 could run the 3’s full load in less power than the 3 does.