Why intel processors draw more power than expected: TDP and Turbo explained

Re:Why intel processors draw more power than expected: TDP a... by effie on Sunday November 11, 2018 @05:38PM (#18429122)

CPUs do no thermodynamic work. They do computational work, which does not count as work in work-heat-energy balance. All electrical energy consumed by CPU turns into increased internal energy of the surroundings, which is, in short, called heat.

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Re:Why intel processors draw more power than expected: TDP a... by craftyguy on Tuesday November 13, 2018 @01:13PM (#18443220)

Not all of the electrical energy consumed by the CPU is used by the CPU for computational work. Some of the electrical energy transfers out of the CPU to other components. The TDP of the CPU is not concerned with those other components. TDP is not a useful measurement of the amount of electrical energy a CPU can consume.

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Re:Why intel processors draw more power than expected: TDP a... by effie on Thursday November 15, 2018 @07:58AM (#18458879)

All consumed energy is used to produce heat, by definition of "consumption". If some electrical energy transfers out of CPU to other components (this is indeed possible), then by definition this energy is not consumed by the CPU. The meaning of TDP is explained in the article - Intel's value of TDP was such a measure, but is no longer so.

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