Английская Википедия:AMD PowerTune

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Шаблон:Use dmy dates Шаблон:Short description Шаблон:Infobox computer hardware

AMD PowerTune is a series of dynamic frequency scaling technologies built into some AMD GPUs and APUs that allow the clock speed of the processor to be dynamically changed (to different P-states) by software. This allows the processor to meet the instantaneous performance needs of the operation being performed, while minimizing power draw, heat generation and noise avoidance. AMD PowerTune aims to solve thermal design power and performance constraints.[1]

Besides the reduced energy consumption, AMD PowerTune helps to lower the noise levels created by the cooling in desktop computers, and extends battery life in mobile devices. AMD PowerTune is the successor to AMD PowerPlay.[2]

Support for "PowerPlay" was added to the Linux kernel driver "amdgpu" on November 11, 2015.[3]

As a lecture from CCC in 2014 shows, AMD's x86-64 SMU firmware is executed on some LatticeMico32 and PowerTune was modeled using Matlab.[4] This is similar to Nvidia's PDAEMON, the RTOS responsible for power on their GPUs.[5]

Overview

Файл:AMD PowerTune Bonaire.svg
Architecture of the PowerTune version, that was introduced with GCN1.1-chips, such as the Bonaire

AMD PowerTune was introduced in the TeraScale 3 (VLIW4) with Radeon HD 6900 on 15 December 2010 and has been available in different development stages on Radeon- and AMD FirePro-branded products ever since.

Over the years, reviews which document the development of AMD PowerTune have been published by AnandTech.[6][7][8][9]

An additional technology named AMD ZeroCore Power has been available since the Radeon HD 7000 Series, implementing the Graphics Core Next microarchitecture.

The pointlessness of a fixed clock frequency was accredited in January 2014 by SemiAccurate.[10]

Operating system support

Файл:Linux AMD graphics stack.svg
Support for PowerTune is contained in the Linux kernel device driver amdgpu.

AMD Catalyst is available for Microsoft Windows and Linux and supports AMD PowerTune since version.Шаблон:Which

The free and open-source "Radeon" graphics device driver has some support for AMD PowerTune, see "Enduro".[11]

Feature overview for AMD APUs

Шаблон:AMD APU features

Feature overview for AMD graphics cards

Шаблон:AMD GPU features

See also

References

Шаблон:Reflist

External links

Шаблон:AMD graphics Шаблон:AMD technology Шаблон:Computer processor power management technologies

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  1. ↑ Шаблон:Cite web
  2. ↑ Шаблон:Cite web
  3. ↑ Шаблон:Cite web
  4. ↑ Шаблон:Cite web
  5. ↑ Шаблон:Cite web
  6. ↑ Шаблон:Cite web
  7. ↑ Шаблон:Cite web
  8. ↑ Шаблон:Cite web
  9. ↑ Шаблон:Cite web
  10. ↑ Шаблон:Cite web
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Radeon Feature Matrix не указан текст
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