Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
P1 Performance State
In this performance power state, the performance capability of a device or processor is
limited below its maximum and consumes less than maximum power.
Pn Performance State
In this performance state, the performance capability of a device or processor is at its
minimum level and consumes minimal power while remaining in an active state. State
n is a maximum number and is processor or device dependent. Processors and devices
may define support for an arbitrary number of performance states not to exceed 255.
30 April, 2015 Version 6.0