Package C-States

Intel® Core™ Ultra 200V Series Processors

Datasheet, Volume 1 of 2

ID	Date	Version	Classification
829568	05/27/2025	004	Confidential

The processor supports C0, C2, C6 and C10 package states. The following is a summary of the general rules for package C-state entry. These apply to all package C-states, unless specified otherwise:

A package C-state request is determined by the lowest numerical processor P/LP E core C-state amongst all processor P/LP E cores.

A package C-state is automatically resolved by the processor depending on the processor P/LP E core idle power states and the status of the platform components.
- Each processor P/LP E core can be at a lower idle power state than the package if the platform does not grant the processor permission to enter a requested package C-state.
- The platform may allow additional power savings to be realized in the processor.
- For package C-states, the processor is not required to enter C0 before entering any other C-state.
- Entry into a package C-state may be subject to auto-demotion – that is, the processor may keep the package in a deeper package C-state then requested by the operating system if the processor determines, using heuristics, that the deeper C-state results in better power/performance.

The processor exits a package C-state when a break event is detected. Depending on the type of break event, the processor does the following:

If a processor P/LP E core break event is received, the target processor P/LP E core is activated and the break event message is forwarded to the target processor P/LP E core.
- If the break event is not masked, the target processor P/LP E core enters the processor P/LP E core C0 state and the processor enters package C0.
- If the break event is masked, the processor attempts to re-enter its previous package state.

If the break event was due to a memory access or snoop request,
- But the platform did not request to keep the processor in a higher package C-state, the package returns to its previous C-state.
- And the platform requests a higher power C-state, the memory access or snoop request is serviced and the package remains in the higher power C-state.

Package C-States

Package C state	Description
PKG C0	Processor active. Core may be active. Graphics may be active.
PKG C2	P-Cores off E-cores in C1E IP power actions
PKG C6	Cores off Graphics cores off IP power actions
PKG C10	Cores off Graphics cores off Additional IP power actions
Note: Display In PSR is only on single embedded panel configuration and panel support PSR feature.

Package C-State Auto-Demotion

The Processor may demote the Package C-State to a shallower Package C-State to enable better performance, for example instead of going into Package C10, processor will demote to Package C6 (and shallower as required).

The processor's decision to demote the Package C-State is based on Power management parameters such as required C states latencies, entry/exit energy/power, Core wake rates, and device LTR (Latency Tolerance Report). This means that the processor is optimized to minimize platform energy for scenarios with low idle time.

Processor deeper Package C-State entry frequency is controlled to minimize platform energy. When Package C-State Auto-Demotion enabled, a reduced residency in a deeper Package C-State is expected during system runs with high wake rates. For example, some USB/Bluetooth audio devices may request high wake rates to keep audio quality of service, this audio behaviour may result in Package C-State Demotion and impact power consumption.

No change at IDLE scenario power consumption due to this feature. Package C-State Auto-Demotion is enabled by default and controlled through BIOS menu .

Modern Standby

Modern Standby is a platform state. On display time out the OS requests the processor to enter package C10 and platform devices at RTD3 (or disabled) in order to attain low power in idle. Modern Standby requires proper BIOS and OS configuration.