Find Clock Speed on M1 Mac

Question

Attempting to find nominal CPU clock frequency. Previously have been finding this using sysctlbyname() with name="hw.cpufrequency" or with sysctl() with name[0]=CTLHW and name[1]=HWCPU_FREQ. I also notice that processor speed no longer shows in 'About this Mac'. Anyone know I programmatically find this value on an M1 machine?

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Posted by

PeterBelarc

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Answer 1

You can use Geekbench 5 to check the clockspeed. I'm using Macbook Pro M1, it shows 2,4GHz. I don't know why its has different with the commercial ads in here https://www.apple.com/mac/m1/

Hope it helps.

Posted by

suryo

Here's what I get when from the command-line: https://gist.github.com/HalCanary/59d7c9c3c408ddfd55c477a992281827

hw.cpufrequency is incorrectly reported uner rosetta2 and is empty otherwise.

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Hal_Canary

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Answer 2

Try this:

sudo /usr/bin/powermetrics -s cpu_power -n 1 | grep '^cpu [0-9]+ frequency: '

Posted by

Hal_Canary

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Find Clock Speed on M1 Mac

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