Intel i5-4200H CL8064701470601 Ficha De Dados

Package C6 state is the deepest C-state supported on discrete graphics systems with

PCI Express Graphics (PEG).

Package C7 state is the deepest C-state supported on integrated graphics systems (or

switchable graphics systems during integrated graphics mode). However, in most

configurations, package C6 will be more energy efficient than package C7 state. As a

result, package C7 state residency is expected to be very low or zero in most

scenarios where the display is enabled. Logic internal to the processor will determine

whether package C6 or package C7 state is the most efficient. There is no need to

make changes in BIOS or system software to prioritize package C6 state over package

C7 state.

When all cores request C7 or deeper C-state, internal heuristics is dynamically flushes

the L3 cache. Once the cores enter a deep C-state, depending on their MWAIT

substate request, the L3 cache is either gradually flushed N-ways at a time or flushed

all at once. Upon the cores exiting to C0, the L3 cache is gradually expanded based on

internal heuristics.

The integrated graphics engine has the frame buffer located in system memory. When

the display is updated, the graphics engine fetches display data from system memory.

Different screen resolutions and refresh rates have different memory latency

requirements. These requirements may limit the deepest Package C-state the

processor can enter. Other elements that may affect the deepest Package C-state

available are the following:
•

Display is on or off

•

Single or multiple displays

•

Native or non-native resolution

•

Panel Self Refresh (PSR) technology

Display resolution is not the only factor influencing the deepest Package C-state the

processor can get into. Device latencies, interrupt response latencies, and core C-

states are among other factors that influence the final package C-state the processor

can enter.

The following table lists display resolutions and deepest available package C-State.

The display resolutions are examples using common values for blanking and pixel

rate. Actual results will vary. The table shows the deepest possible Package C-state.

System workload, system idle, and AC or DC power also affect the deepest possible

Package C-state.

Disabled

Single

800x600 60 Hz

PC6

Disabled

Single

1024x768 60 Hz

PC6

Disabled

Single

1280x1024 60 Hz

PC6

Mobile 4th Generation Intel

®

 Core

™

 Processor Family, Mobile Intel

®

 Pentium

®

 Processor Family, and Mobile Intel

®

 Celeron

®

Processor Family

July 2014

Datasheet – Volume 1 of 2

Order No.: 328901-007

61