Cooling Efficiency Calculator
Account for ambient heat and overclock load to see your real cooling margin.
Estimate usable cooling margin after accounting for room temperature and a planned overclock. See the gap between your cooler’s capacity and the chip’s heat.
Result
Real margin after the room heats up
Scenario: you plan to overclock in a warm room and want to know if your cooler can handle the extra heat once ambient temperature is factored in.
Example: 125 W CPU + 20 W OC = 145 W load; a 250 W cooler minus ~25 W ambient penalty (30°C room) = 225 W capacity — +80 W margin, “Strong.” At 40°C room the margin shrinks sharply.
Boundaries: assumes a steady-state model; real transient spikes and case airflow dominate. Ambient penalty is a rough 2–3 W per °C above 22°C. Undervolting recovers margin without losing performance.
FAQ: does room temperature really matter? Yes — every degree above ~22°C eats a few watts of effective cooling. Air conditioning or better airflow can help as much as a bigger cooler.