The right CPU cooler for every application
What is the difference between active and passive CPU coolers?
Active CPU coolers have a fan, which ensures continuous airflow to dissipate the heat generated by the CPU. The larger the fan diameter and the higher the speed of the fan, the better the cooling performance. Since an increase of the speed also causes an increased noise level, it is important to find an appropriate balance between the fan diameter, fan speed and size of the heatsink for an effective CPU cooler.
Passive CPU coolers, however, have no fan. The biggest advantage is the completely silent operation. The heat is conducted into the heatsink and discharged from there into the surrounding air. Since air, without additional airflow, is a poor conductor of heat, passive coolers need to have quite large heatsinks to achieve adequate cooling performance, yet are not as powerful as active coolers.
What types of CPU air coolers are there?
In general, you can distinguish the following types of CPU coolers: