Intel Turbo Boost
Intel Turbo Boost is
The frequency is accelerated when the
When the workload on the processor calls for faster performance, the processor's clock will try to increase the operating frequency in regular increments as required to meet demand. The increased clock rate is limited by the processor's
Turbo-Boost-enabled processors are the
Support across CPUs
Frequency increases occur in increments of 133 MHz for Nehalem processors and 100 MHz for Sandy Bridge, Ivy Bridge, Haswell and Skylake processors. When any electrical or thermal limits are exceeded, the operating frequency automatically decreases in decrements of 133 or 100 MHz until the processor is again operating within its design limits.[1][4] Turbo Boost 2.0 was introduced in 2011 with the Sandy Bridge microarchitecture, while Intel Turbo Boost Max 3.0 was introduced in 2016 with the Broadwell-E microarchitecture.[1][5][6][7]
A feature of Turbo Boost 2.0 is that it introduced time windows with different levels of power limits, so that a processor can boost to a higher frequency for a few seconds. These limits are configurable in software for unlocked processors. Some motherboard vendors intentionally use values higher than Intel's default for performance, causing the processor to exceed its thermal design power (TDP).[8]
Some Intel Core X Processors and some newer Intel Core Processors (e.g. 10th Gen Desktop
History
An Intel November 2008 white paper[10] discusses "Turbo Boost" technology as a new feature incorporated into Nehalem-based processors released in the same month.[11]
A similar feature called
Intel Turbo Boost Technology Monitor, as a
See also
- AMD PowerTune
- AMD Turbo Core
- Cool'n'Quiet
- Dynamic frequency scaling
- PowerNow!
- SpeedStep
- Turbo button
References
- ^ a b c d e "Intel Turbo Boost Technology 2.0". Intel.
- ISBN 978-0-7695-3771-9.
[...] processors based on the Nehalem microarchitecture feature a dynamic overclocking mechanism (Intel Turbo Boost Technology) that allows the processor to raise core frequencies as long as the thermal limit is not exceeded.
- ^ "Intel Broadwell-E HEDT Core i7 Processors Launching on 30th May - Official Prices and Specifications Confirmed". 27 May 2016. Retrieved 28 June 2016.
- ^ "Intel Xeon Processor E5 v3 Product Family: Processor Specification Update" (PDF). Intel. November 2014. pp. 8–11. Retrieved December 2, 2014.
- ^ "Download Intel® Turbo Boost Max Technology 3.0". DownloadCenter.Intel.com. 2016-10-22. Archived from the original on 2018-10-19. Retrieved 2017-04-01.
- ^ "Power management architecture of the 2nd generation Intel Core microarchitecture, formerly codenamed Sandy Bridge" (PDF). Hotchips.org. Retrieved 2017-04-01.
- ^ Angelini, Chris (2011-01-02). "The System Agent And Turbo Boost 2.0". Tom's Hardware.
- ^ Cutress, Ian. "Why Intel Processors Draw More Power Than Expected: TDP and Turbo Explained". AnandTech.
- ^ "Frequently Asked Questions about Intel Turbo Boost Max Technology 3.0". Intel.com. Intel. Retrieved 2020-06-16.
- ^ "Intel Turbo Boost Technology in Intel Core Microarchitecture (Nehalem) Based Processors" (PDF). Intel Corporation. November 2008. p. 5. Retrieved 2015-05-07.
Intel Core Microarchitecture (Nehalem) based processors incorporate a new feature: Intel Turbo Boost technology.
- ^ "Intel Launches Fastest Processor on the Planet" (Press release). Intel. 2008-11-17. Retrieved 2010-05-13.
Intel Corporation introduced its most advanced desktop processor ever, the Intel Core i7 processor. The Core i7 processor is the first member of a new family of Nehalem processor designs [....]
- ^ "Intel Turbo Boost Technology Monitor Does Not Support 4th Generation Processors". intel.com. Retrieved 22 February 2015.
External links
- Intel Turbo Boost Technology 2.0
- Intel program to graphically show Turbo Boost
- Intel® Turbo Boost Technology Monitor overview
- Turbo Boost reporting tool for Linux
- Evaluation of the Intel Core i7 Turbo Boost feature, by James Charles, Preet Jassi, Ananth Narayan S, Abbas Sadat and Alexandra Fedorova