5.9.2Package Power Control
December 2013 Order No.: 328897-004

Processor—Thermal Management

•Uncharacterized workloads may exist that could result in higher turbo frequencies and power. If that were to happen, the processor Thermal Control Circuitry (TCC) would protect the processor. The TCC protection must be enabled by the platform for the product to be within specification.

An illustration of Intel Turbo Boost Technology power control is shown in the following sections and figures. Multiple controls operate simultaneously allowing for customization for multiple system thermal and power limitations. These controls provide turbo optimizations within system constraints.

5.9.2Package Power Control

The package power control allows for customization to implement optimal turbo within platform power delivery and package thermal solution limitations.

Table 28.

Intel® Turbo Boost Technology 2.0 Package Power Control Settings

MSR:

 

MSR_TURBO_POWER_LIMIT

Address:

 

610h

 

 

 

 

 

 

Control

Bit

Default

Description

 

 

 

 

 

 

 

 

 

• This value sets the average power limit over a long time

 

 

 

 

period. This is normally aligned to the TDP of the part and

 

 

 

 

steady-state cooling capability of the thermal solution. The

 

 

 

 

default value is the TDP for the SKU.

 

 

 

 

• PL1 limit may be set lower than TDP in real time for specific

 

 

 

 

needs, such as responding to a thermal event. If it is set

POWER_LIMIT_1 (PL1)

14:0

SKU TDP

lower than TDP, the processor may require to use frequencies

below the guaranteed P1 frequency to control the low-power

 

 

 

 

 

 

 

 

limits. The PL1 Clamp bit [16] should be set to enable the

 

 

 

 

processor to use frequencies below P1 to control the set-

 

 

 

 

power limit.

 

 

 

 

• PL1 limit may be set higher than TDP. If set higher than TDP,

 

 

 

 

the processor could stay at that power level continuously and

 

 

 

 

cooling solution improvements may be required.

 

 

 

 

 

POWER_LIMIT_1_TIME

 

 

This value is a time parameter that adjusts the algorithm

23:17

1 sec

behavior to maintain time averaged power at or below PL1. The

(Turbo Time Parameter)

hardware default value is 1 second; however, 28 seconds is

 

 

 

 

 

 

recommended for most mobile applications.

 

 

 

 

 

 

 

 

 

PL2 establishes the upper power limit of turbo operation above

 

 

 

 

TDP, primarily for platform power supply considerations. Power

 

 

 

 

may exceed this limit for up to 10 ms. The default for this limit is

 

 

 

 

1.25 x TDP; however, the BIOS may reprogram the default value

POWER_LIMIT_2 (PL2)

46:32

1.25 x TDP

to maximize the performance within platform power supply

considerations. Setting this limit to TDP will limit the processor to

 

 

 

 

 

 

 

 

only operate up to the TDP. It does not disable turbo because

 

 

 

 

turbo is opportunistic and power/temperature dependent. Many

 

 

 

 

workloads will allow some turbo frequencies for powers at or

 

 

 

 

below TDP.

 

 

 

 

 

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

Datasheet – Volume 1 of 2 80

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Intel BX80637I73770K, CM8064601466200, CM8064601466003 Intel Turbo Boost Technology 2.0 Package Power Control Settings
Page 79 Page 81

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.
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