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PC Gamer
PC Gamer
Jacob Fox

'A performance tool that requires a graduate seminar before breakfast has already lost the room': Why Windows Task Manager looks like it's getting CPU usage wrong

Windows 11 Task Manager showing an AMD Ryzen 7 7800X3D's CPU utilisation chart.

People have had a problem with how Windows 11's Task Manager shows CPU usage stats for a long time. While recent discussions have revolved around the idea that the app only bases its reporting on base clocks, Dave Plummer, the creator of the original Task Manager, explains in a recent video how it might actually be more to do with average calculations and complicated "little lies" and "compromises" in underlying calculations.

Last month, Microsoft announced a fix for this in recent a Preview build for the operating system. The company said: "We are changing the way Task Manager calculates CPU utilization for the Processes, Performance, and Users pages. Task Manager will now use the standard metrics to display CPU workload consistently across all pages and aligning with industry standards and third-party tools."

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