AMD Turbo Core

Turbo Core, also known as Core Performance Boost (CPB) and Precision Boost (PB), is a dynamic frequency scaling technology developed by AMD, and implemented in their CPUs. CPB dynamically adjust a processor's clock rate and core voltage beyond its rated standard clock to increase performance, while keeping the processor's power consumption and heat output within limits.^[1] AMD Turbo Core technology has been implemented beginning with the Phenom II X6 microprocessors based on the AMD K10 microarchitecture.^[2] AMD Turbo Core is available with some AMD A-Series accelerated processing units.^[3]

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.

To decide a processor's clock speed, the processor is stress tested to determine the maximum speed that the processor can run at 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.^[4] A parameter called average CPU power (ACP) is used to address this issue. ACP defines the average power expected to be consumed with regular use, whereas TDP gives the maximum 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 average power consumed being less than the maximum design limits, allowing frequency (and the accompanying power and heat) to be increased for short periods of time without exceeding design limits.

Advantages of AMD Turbo Core include:^[4]

• Up to 900 MHz of additional clock speed available with all cores active, meaning all cores can boost at the same time.
• قد تتوفر حالات تعزيز أعلى مع تفعيل نصف النوى، حيث أن عدد النوى النشطة الأقل يتطلب طاقة أقل ويولد حرارة أقل.
• يتم التحكم في ذلك عن طريق استهلاك الطاقة وليس درجة الحرارة، بحيث يكون نفس التحسن في الأداء متاحًا في البيئات الأكثر دفئًا، بحيث يعتمد الحد الأقصى للتردد على عبء العمل.

مع معالجات Ryzen ، قدمت AMD ميزات إضافية لكسر السرعة التلقائي: ^{[ 5 ]}

• تحاول تقنية Precision Boost تشغيل المعالج بأعلى تردد مسموح به في أي لحظة، مع مراعاة قيود التبريد وإمداد الطاقة. وتُغير التردد  بزيادات قدرها 25 ميجاهرتز. وقد تم تقديم تقنية Precision Boost Overdrive في معالجات Zen+ .
• تتيح ميزة نطاق التردد الموسع نطاقات التعزيز الافتراضية للأنظمة ذات التبريد الأفضل.

• أوبترون
• AMD FX
• وحدة المعالجة المركزية AMD APU
• معالج AMD Ryzen
• معالج AMD EPYC
• بعض معالجات AMD Phenom II

• معالجات AMD Cool'n'Quiet (لأجهزة الكمبيوتر المكتبية)
• تقنية AMD PowerNow! (لأجهزة الكمبيوتر المحمولة)
• AMD PowerTune (الرسومات)
• تغيير تردد الصوت الديناميكي
• تقنية Intel SpeedStep (وحدات المعالجة المركزية)
• تقنية Intel Turbo Boost
• زر التوربو