News for hackers. Stuff that matters.

A comment on Intel Launches $699 Core I9-13900KS, the First 6 GHz CPU: Available Now. Parent comment

Re:Intel Launches $699 Core I9-13900KS, the First 6 GHz CPU:... by rthomas6 on Thursday January 12, 2023 @09:27PM (#34363216)
I took a grad school processor design course. There was an equation for calculating the approximate power draw of a processor, and there was a f^4 or something in there, f being frequency. The 6 GHz clock speed has a lot to do with the power consumption.
[ Parent | on HN ]
Re:Intel Launches $699 Core I9-13900KS, the First 6 GHz CPU:... by phonon on Thursday January 12, 2023 @10:03PM (#34363488)
No, it's linear with frequency, and proportional to the square of the voltage. Outside of the frequency "sweet spot" you have to crank up the voltage though....and leakage increases as well.

https://en.wikipedia.org/wiki/Processor_power_dissipation

[ Parent | on HN ]
Re:Intel Launches $699 Core I9-13900KS, the First 6 GHz CPU:... by rthomas6 on Friday January 13, 2023 @07:49AM (#34366995)
Guess I'm misremembering
[ Parent | on HN ]