I think this is every Apple Intel platform. My i7 6-core Mini can manage about 30 seconds at full clock if they're all lit. One problem seems to be that the fan

I think this is every Apple Intel platform. My i7 6-core Mini can manage about 30 seconds at full clock if they're all lit. One problem seems to be that the fan hysteresis is too long, it spins up the fan too slowly and the CPU is already throttling down before it reaches full airflow.