How it works
Thermal throttling reduces operating performance when thermal conditions require protection or control. A hot reading alone does not prove it occurred; the temperature must be interpreted with the component’s limits and actual throttle indicators. Power limits can reduce clocks for a different reason.
A practical example
A game may run smoothly at first and slow after the cooling system heats up. Correlating frame-time changes with temperature and clock behaviour helps distinguish thermal effects from a background task or a GPU workload change.
What to check
Use model-appropriate monitoring during a repeatable normal task. Check cooler mounting, vents, fans and airflow, then compare behaviour under similar ambient conditions. Record power settings and do not compare an idle temperature with a heavy-load result as if they were equivalent.
Limits and safe next steps
Do not disable thermal protection to preserve a benchmark score. Repeated shutdowns, unusual smells or damaged cooling require stopping and assessment. Cleaning and cooler service need appropriate precautions; a normal protective response does not automatically mean the chip itself is defective.