Direct Media Interface (DMI) States

Power Management—Processor

Table 15.

Direct Media Interface (DMI) States

 

 

 

 

State

Description

 

 

 

 

L0

Full on – Active transfer state.

 

 

 

 

L0s

First Active Power Management low-power state – Low exit latency.

 

 

 

 

L1

Lowest Active Power Management – Longer exit latency.

 

 

 

 

L3

Lowest power state (power-off) – Longest exit latency.

 

 

 

Table 16.

G, S, and C Interface State Combinations

 

 

 

 

 

 

 

 

 

 

Global

Sleep (S)

Processor

Processor

System Clocks

Description

 

(G)

State

Package (C)

State

 

 

 

State

 

State

 

 

 

 

 

 

 

 

 

 

 

G0

S0

C0

Full On

On

Full On

 

 

 

 

 

 

 

 

G0

S0

C1/C1E

Auto-Halt

On

Auto-Halt

 

 

 

 

 

 

 

 

G0

S0

C3

Deep Sleep

On

Deep Sleep

 

 

 

 

 

 

 

 

G0

S0

C6/C7

Deep Power-

On

Deep Power-down

 

down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G1

S3

Power off

 

Off, except RTC

Suspend to RAM

 

 

 

 

 

 

 

 

G1

S4

Power off

 

Off, except RTC

Suspend to Disk

 

 

 

 

 

 

 

 

G2

S5

Power off

 

Off, except RTC

Soft Off

 

 

 

 

 

 

 

 

G3

NA

Power off

 

Power off

Hard off

 

 

 

 

 

 

 

Table 17.

D, S, and C Interface State Combination

 

 

 

 

 

 

 

 

Graphics

Sleep (S)

Package (C)

 

Description

 

Adapter (D)

State

State

 

 

 

State

 

 

 

 

 

 

 

 

 

 

 

D0

S0

C0

 

Full On, Displaying.

 

 

 

 

 

 

 

D0

S0

C1/C1E

 

Auto-Halt, Displaying.

 

 

 

 

 

 

 

D0

S0

C3

 

Deep sleep, Displaying.

 

 

 

 

 

 

 

D0

S0

C6/C7

 

Deep Power-down, Displaying.

 

 

 

 

 

 

 

D3

S0

Any

 

Not displaying.

 

 

 

 

 

 

 

D3

S3

N/A

 

Not displaying, Graphics Core is powered off.

 

 

 

 

 

 

 

D3

S4

N/A

 

Not displaying, suspend to disk.

 

 

 

 

 

 

4.2Processor Core Power Management

While executing code, Enhanced Intel SpeedStep® Technology optimizes the processor’s frequency and core voltage based on workload. Each frequency and voltage operating point is defined by ACPI as a P-state. When the processor is not executing code, it is idle. A low-power idle state is defined by ACPI as a C-state. In general, deeper power C-states have longer entry and exit latencies.

4.2.1Enhanced Intel® SpeedStep® Technology Key Features

The following are the key features of Enhanced Intel SpeedStep Technology:

Desktop 4th Generation Intel® CoreProcessor Family, Desktop Intel® Pentium® Processor Family, and Desktop Intel® Celeron® Processor Family

December 2013

Datasheet – Volume 1 of 2

Order No.: 328897-004

51

Page 51
Image 51
Intel BX80633I74960X, CM8064601466200 Processor Core Power Management, Enhanced Intel SpeedStep Technology Key Features

BX80633I74960X, BX80646I34130, BX80646I54430, BX80646I74770K, BX80646I74770 specifications

The Intel CM8063701159502, or BX80637I53470, is a powerful CPU designed for modern computing needs. This processor belongs to Intel's 4th generation of Core i5 processors, commonly known as "Haswell". It showcases Intel's commitment to enhancing performance, increasing energy efficiency, and delivering an enriching user experience.

One of the main features of the Intel Core i5-3470 is its quad-core architecture. This allows the processor to handle multiple threads simultaneously, making it adept at multitasking and running demanding applications efficiently. With a base clock speed of 3.2 GHz, it can boost up to 3.6 GHz using Intel’s Turbo Boost technology, providing additional power when needed for intensive tasks like gaming or video editing.

The Intel i5-3470 features Intel's HD Graphics 2500, which offers decent graphics performance for everyday tasks and casual gaming. This integrated graphics solution is capable of delivering high-definition visuals and supports DirectX 11, making it suitable for lightweight gaming experiences without the need for an additional dedicated graphics card.

Another standout characteristic of the BX80637I53470 is its support for Intel Smart Cache, which is an advanced caching technology. It provides a shared cache pool that enhances performance by reducing the time it takes to access frequently used data. This feature, coupled with Intel's instruction set architecture, allows for improved processing agility and efficiency across applications.

The processor is built on a 22nm manufacturing process, which results in reduced power consumption and heat generation compared to its predecessors. It has a thermal design power (TDP) of 77 watts, making it energy efficient while still delivering robust performance. Additionally, the Core i5-3470 supports DDR3 memory, with speeds up to 1600 MHz, enabling quick data retrieval and improved system responsiveness.

Security is another important aspect of the Intel i5-3470, featuring Intel Secure Key and Intel AES New Instructions (AES-NI), which protect sensitive data and enhance encryption performance.

In conclusion, the Intel CM8063701159502, or BX80637I53470, encapsulates modern computing technology with its powerful quad-core performance, integrated graphics, energy efficiency, and robust security features, making it a versatile choice for a wide range of computing tasks. Whether users are engaging in casual gaming, productivity tasks, or multimedia consumption, this processor demonstrates a solid balance of performance and efficiency, providing an excellent computing experience overall.