Intel 807 AV8062701079702 Data Sheet

In C3 or deeper power state, the processor internally gates V

DDQ

 for the majority of

the logic to reduce idle power while keeping all critical DDR pins such as CKE and

VREF in the appropriate state.

In C7 or deeper power state, the processor internally gates Vcc

ST

 for all non-critical

state to reduce idle power.

In S3 or C-state transitions, the DDR does not go through training mode and will

restore the previous training information.

Intel Rapid Memory Power Management (Intel RMPM) conditionally places memory

into self-refresh when the processor is in package C3 or deeper power state to allow

the system to remain in the lower power states longer for memory not reserved for

graphics memory. Intel RMPM functionality depends on graphics/display state

(relevant only when processor graphics is being used), as well as memory traffic

patterns generated by other connected I/O devices.

Render C-state (RC6) is a technique designed to optimize the average power to the

graphics render engine during times of idleness. RC6 is entered when the graphics

render engine, blitter engine, and the video engine have no workload being currently

worked on and no outstanding graphics memory transactions. When the idleness

condition is met, the processor graphics will program the graphics render engine

internal power rail into a low voltage state.

Intel S2DDT reduces display refresh memory traffic by reducing memory reads

required for display refresh. Power consumption is reduced by less accesses to the

IMC. Intel S2DDT is only enabled in single pipe mode.

Intel S2DDT is most effective with:
•

Display images well suited to compression, such as text windows, slide shows, and

so on. Poor examples are 3D games.

•

Static screens such as screens with significant portions of the background showing

2D applications, processor benchmarks, and so on, or conditions when the

processor is idle. Poor examples are full-screen 3D games and benchmarks that

flip the display image at or near display refresh rates.

Intel Graphics Dynamic Frequency Technology is the ability of the processor and

graphics cores to opportunistically increase frequency and/or voltage above the

guaranteed processor and graphics frequency for the given part. Intel Graphics

Dynamic Frequency Technology is a performance feature that makes use of unused

package power and thermals to increase application performance. The increase in

frequency is determined by how much power and thermal budget is available in the

package, and the application demand for additional processor or graphics

5th Generation Intel

®

 Core

™

 Processor Family, Intel

®

 Core

™

 M Processor Family, Mobile Intel

®

 Pentium

®

 Processor Family, and

Mobile Intel

®

 Celeron

®

 Processor Family

Datasheet – Volume 1 of 2

March 2015

58

Order No.: 330834-004v1