task manager displays wrong cpu speed/utilization

as can be seen, windows 10's task manager reports cpu speed as 3.26, where it is actually 4.13.

similarly, a multiplier of 28 will show a maximum cpu utilization of 80%.

the computer is running prime95, so it is definitely 100% loaded; this can be seen in various applications (e.g. intel extreme tuning utility, and many many others)

possibly the 125 bus speed is ignored? task manager seems to assume it is set to 100 in its calculations

is there a fix for this?

Hi Jimmy,

Thank you for posting your query in Microsoft Community.

I understand your concern and will be glad to help you.

Task Manager displays the programs, processes, and services that are currently running on your computer.

On the CPU section of the Performance tab, the actual CPU is now specifically identified in detail with the brand, the model number, the speed, as well as the number of sockets, cores, and logical processors.

Other third party performance monitor specifies the utilization and speed of the processor using different algorithms which differs from Windows Task Manager computations.

In addition, different algorithms are used to measure performance. For example, the algorithm used by Intel in its branded maximum speed is different than the algorithm used by Windows Task Manager to directly measure the speed of the CPU. You can use other processor utilities, such as the Intel Processor Identification Utility or CPU-Z, for additional processor speed measurements.

Keep us posted if you face any issues on Windows in future. We will be glad to help you.

Thank you.

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the cpu is overclocked to ABOVE the stock 3.5, yet task manager shows a value BELOW the stock. this simply cannot possibly be considered accurate...

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well i guess a possible workaround is simply to set the multiplier to 35, in which case the calculations will be correct again, but this requires the computer to be able to be overclocked to 35 with a bus speed of 125 (in other words: stable on a +25% overclock)

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Last updated October 24, 2020 Views 8,818 Applies to: