If supported by your CPU this setting will enable (if checked) or disable (if unchecked) Turbo Boost. If the power conservation is a priority, unchecking this check box will ensure that your CPU will never attempt to enter frequencies in turbo range. NOTE: this setting can olso be controlled by software on the main screen with Turbo Boost index. Setting this index to 0 will disable the Turbo Boost.

In short Enhanced SpeedStep allows the processor to meet the instantaneous performance needs of the operation being performed, while minimizing power consumption and heat generation.

Also known as enhanced halt state C1E is also a power saving feature and when enabled will allow your CPU to switch to the Minimum Enhanced Intel SpeedStep Technology operating point, when all execution cores enter MWAIT (C1). In some cases disabling this feature can improve CPU latency.

Hardware Duty Cycling (HDC), enables the processor to automatically force its components inside the CPU physical package into idle state. For example, the processor may selectively force one or multiple cores into an idle state depending on the internal CPU package state, as well as lower effective CPU frequency. HDC is a power saving feature during low system load.

Enabling this feature will enable the Bi-directional signal. This will allow other components within the CPU package to signal if the CPU has exceeded its maximum thermal condition and whether or not it should activate the Thermal Control Circuit (TCC).

Clock modulation is a feature that enables implementation of power management policies that will reduce power consumption. This feature is an addition to power management implemented by thermal monitoring sensors. If set to non 0 value, it will internally reduce the power and speed of your CPU.

Another power management feature that gives the ability to choose a preference between maximum performance and energy/power conservation.