Thermal Throttle Calculator
Estimate CPU/GPU operating temperature and thermal throttle risk based on TDP, cooler rating, ambient temperature, and case airflow quality.
How to Use the Thermal Throttle Calculator
- Enter component TDP in watts.
- Enter your cooler's rated capacity in watts.
- Enter ambient room temperature.
- Select case airflow quality.
- Click Calculate to see estimated temperature and risk.
Cas d'utilisation
- •Selecting a CPU cooler for a new build.
- •Diagnosing thermal throttling issues.
- •Planning cooling for overclocked systems.
- •Evaluating chassis airflow improvements.
Formule
Estimated temp = Ambient + Airflow penalty + TDP × thermal resistance. Throttle risk based on junction temperature thresholds.
Questions fréquemment posées
What temperature causes throttling?
Most modern CPUs throttle above 95°C (Tj Max). GPUs typically throttle at 83–90°C.
What is a good cooler for a 125W CPU?
A 150W+ rated air cooler or 240mm AIO liquid cooler is recommended for a 125W TDP CPU.
How does case airflow affect temps?
Poor airflow can add 10–20°C to component temperatures versus good airflow with proper intake/exhaust fans.