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AMD Turbo Core
AMD Turbo Core is a technology implemented by AMD that allows the processor to dynamically adjust and control the processor operating frequency in certain versions of its processors which allows for increased performance when needed while maintaining lower power and thermal parameters during normal operation.〔(【引用サイトリンク】url=http://www.amd.com/en-us/innovations/software-technologies/turbo-core )〕 AMD Turbo Core technology has been implemented beginning with the Bulldozer microarchitecture. AMD Turbo Core is currently available with select AMD A-Series accelerated processing units.〔(【引用サイトリンク】url=http://www.amd.com/en-us/who-we-are/features-details )〕
AMD Turbo Core is similar to Intel Turbo Boost, which is another dynamic processor frequency adjustment technology used to increase performance, as well as AMD PowerNow!, which is used to dynamically adjust laptop processor's operating frequencies in order to decrease power consumption (saving battery life), reduce heat, and lower noise. AMD PowerNow! is used to ''decrease'' processor frequency, whereas AMD Turbo Core is used to ''increase'' processor frequency.
==Background==
To determine a processors clock speed, the processor is stress tested to determine the maximum speed that the processor can run before the maximum amount of power allowed is reached, which is called thermal design power or TDP. It has been reported that customers would complain that the processors rarely consumed the rated TDP, which meant that most consumers do not come close to the power consumed during maximum stress testing.〔 A parameter called Average CPU Power or ACP is used to address this issue. ACP defines the average power expected to be consumed with regular use, whereas TDP gives the top power consumed. Power consumed is an important factor when considering thermal limits and determining CPU power dissipation.
AMD Turbo Core and similar dynamic processor frequency adjustment technologies take advantage of the fact that average power consumed is less than the maximum design limits and therefore frequency (and the accompanying power and heat) is able to be increased for short amounts of time and still be within design limits.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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