Throttling

As Throttling (ger .: throttling) is called skipping cycles at main and graphics processors .

Throttling is used to lower the temperature in the event of overheating and thus to protect the processor. By lowering the cycle, the resulting waste heat is reduced. The amount of throttling is usually given in percent. A throttling of 50% means that every second stroke is skipped, 75% means that three are skipped out of four, and so on.

The power saving effect of throttling is less than linear; a more effective method, for example, the lowering of the core voltage ( PowerNow! , SpeedStep etc.). Throttling can still be used, for example, to consume even less energy at the lowest clock speed. The Powersave governors under Linux support automatic throttling when the computer is not in use, which can lead to a marginally longer battery life in notebooks .

Common throttling levels are:

T0: 00%
T1: 12%
T2: 25%
T3: 37%
T4: 50%
T5: 62%
T6: 75%
T7: 87%