Turbo Boost: Difference between revisions
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Intel introduced Turbo Boost (previously known as "Intel Dynamic Acceleration") in the [[Nehalem]] processor. It allows active cores to be stepped up beyond their usual operating frequency, using cutoffs such as power draw or thermal dissipation. Turbo Boost operates in 133MHz increments on [[Nehalem]], and 100MHz increments on [[Sandy Bridge]]; the Sandy Bridge implementation also uses a more accurate thermal model. Turbo Boost can be used on more than one core at a time; Sandy Bridge typically allows more aggressive Turbo Boosting when multiple cores are active. | Intel introduced Turbo Boost (previously known as "Intel Dynamic Acceleration") in the [[Nehalem]] processor. It allows active cores to be stepped up beyond their usual operating frequency, using cutoffs such as power draw or thermal dissipation. Turbo Boost operates in 133MHz increments on [[Nehalem]], and 100MHz increments on [[Sandy Bridge]]; the Sandy Bridge implementation also uses a more accurate thermal model. Turbo Boost can be used on more than one core at a time; Sandy Bridge typically allows more aggressive Turbo Boosting when multiple cores are active. | ||
"Activity" is a function of the [[ACPI]] Processor State ("[[Power Management|C State]]") of each core; cores in state C0 are considered active. | "Activity" is a function of the [[ACPI]] Processor State ("[[Power Management|C State]]") of each core; cores in state C0 (Operating) or C1 (Halt) are considered active. | ||
==Sources== | ==Sources== | ||