Voltage and frequency scaling

Voltage and frequency scaling

Voltage and frequency scaling may refer to:

  • Dynamic voltage scaling, a power management technique in computer architecture, where the voltage used in a component is increased or decreased, depending upon circumstances
  • Dynamic frequency scaling, a technique in computer architecture whereby the frequency of a microprocessor can be automatically adjusted "on the fly," either to conserve power or to reduce the amount of heat generated by the chip

Voltage and frequency scaling are often used together to save power in mobile devices including cell phones. When used in this way it is commonly known as DVFS, or Dynamic Voltage and Frequency Scaling.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Frequency scaling — (also known as frequency ramping) is, in computer architecture, the technique of ramping a processor s frequency so as to achieve performance gains. Frequency ramping was the dominant force in commodity processor performance increases from the… …   Wikipedia

  • Dynamic frequency scaling — For the CPU design principle, see Frequency scaling. Dynamic frequency scaling (also known as CPU throttling) is a technique in computer architecture whereby the frequency of a microprocessor can be automatically adjusted on the fly, either to… …   Wikipedia

  • Dynamic voltage scaling — is a power management technique in computer architecture, where the voltage used in a component is increased or decreased, depending upon circumstances. Dynamic voltage scaling to increase voltage is known as overvolting; dynamic voltage scaling… …   Wikipedia

  • Advanced Configuration and Power Interface — In computing, the Advanced Configuration and Power Interface (ACPI) specification provides an open standard for device configuration and power management by the operating system. First released in December 1996, ACPI defines platform independent… …   Wikipedia

  • Multi-core processor — Diagram of a generic dual core processor, with CPU local level 1 caches, and a shared, on die level 2 cache …   Wikipedia

  • Very-large-scale integration — VLSI redirects here. For the former company, see VLSI Technology. Very large scale integration (VLSI) is the process of creating integrated circuits by combining thousands of transistors into a single chip. VLSI began in the 1970s when complex… …   Wikipedia

  • CPU power dissipation — Central processing unit power dissipation or CPU power dissipation is the process in which central processing units (CPUs) consume electrical energy, and dissipate this energy both by the action of the switching devices contained in the CPU (such …   Wikipedia

  • Multi-core — A multi core processor (or chip level multiprocessor, CMP) combines two or more independent cores into a single package composed of a single integrated circuit (IC), called a die, or more dies packaged together. The individual core is normally a… …   Wikipedia

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • Green computing — también conocido como Green IT o traducido al español como Tecnologías Verdes se refiere al uso eficiente de los recursos computacionales minimizando el impacto ambiental, maximizando su viabilidad económica y asegurando deberes sociales. No sólo …   Wikipedia Español

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”