The issue is constant running also has thermal cycles, the variance between peaks is just lower, but can be more rapid. (Spikes from particular instructions bei

The issue is constant running also has thermal cycles, the variance between peaks is just lower, but can be more rapid. (Spikes from particular instructions being more power hungry). Also in this case we have mechanical components under constant usage (fans), and the effects of long term heat on the thermal compound between the die and cooler plates to consider.