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When I checked the frequency of my Intel i3, I saw that frequency went down to 800 MHz, from the default 2300 MHz (apparently to reduce power consumption).

Now I knew about Turbo Boost Technology (Frequency Increase when single cores used), But I never knew that the frequency would go down.

I want to know when this was feature was incorporated( Date and Processor code name (Arrandale, Clarkdale). If anyone could give me a press release link, it would be great.

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It sounds like dynamic frequency scaling (DFS), which Intel call 'SpeedStep' :

SpeedStep was introduced with the Mobile Pentium III in January 2000 :

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And it's "Cool n' Quiet" in AMD. – Shiki Feb 11 '13 at 12:20

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