The decision to kick into turbo boost is automatic and algorithmic in nature based on a number of factors such as: estimated current consumption, estimated power consumption, core temperature, and the number of active cores.
Under various workloads, especially ones that are relatively low in power demands and are lightly threaded or not threaded at all, the processor can take advantage of the headroom by increasing the clock frequency - while staying within thermal and electrical limits. This feature is only available on Intel microprocessors that support Turbo Boost and have the feature enabled and supported (e.g. Turbo Boost 2.0 was introduced later in 2011 in the Sandy Bridge microarchitecture. It was consequently introduced in the Nehalem microarchitecture. Turbo Boost Technology 1.0 was first introduced announced in a white paper Intel published in November 2008. Wa_cq_url: "/content/Upper limit based on active core count Wa_audience: "emtaudience:consumer/gamer", Wa_english_title: "What Is Intel® Turbo Boost Technology?",
Wa_emtsubject: "emtsubject:consumertechnology/gaming", Wa_emtcontenttype: "emtcontenttype:donotuse/webpage/article", You don’t need to download or configure anything. If you’re wondering how to enable Turbo Boost, don’t worry - it’s enabled by default. This can increase performance in both single-threaded and multithreaded applications (programs that utilize several processor cores). Intel® Turbo Boost Technology can potentially increase CPU speeds up to the Max Turbo Frequency while staying within safe temperature and power limits. This is sometimes called “algorithmic overclocking”. But when more speed is needed, Intel® Turbo Boost Technology dynamically increases the clock rate to compensate. Running at a lower clock rate (the number of cycles executed by the processor every second) allows the processor to use less power, which can reduce heat and positively impact battery life in laptops.
Intel® Turbo Boost Technology is an energy-efficient solution to this imbalance: it lets the CPU run at its base clock speed when handling light workloads, then jump to a higher clock speed for heavy workloads. Some programs are more dependent on memory to run smoothly, while others are CPU-intensive. How Does Intel® Turbo Boost Technology Work?ĬPUs don’t always need to run at their maximum frequency.
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