Get CPU processor speed via PowerShell

Question

I needed to get number of CPU processor speed as a number. I can't use any extra utility commands. I can use only cmd in Windows or Powershell.

wmic cpu get name | select -Skip 1 | %{$_.Split(' ')[5];} | %{$_.Substring(0, 3)}

Everything is performed correctly, except substring command

Does it exist any easy approach to fix it? And why I get 4 warning for single value after split command?

Get-WmiObject Win32_Processor | Select-Object -Expand MaxClockSpeed — Ansgar Wiechers
– Ansgar Wiechers, Commented Oct 7, 2019 at 11:57
Or shortened (GWMI Win32_Processor).MaxClockSpeed or if you have at least PowerShell 3.0, (GCIM Win32_Processor).MaxClockSpeed. — Compo
– Compo, Commented Oct 7, 2019 at 12:01

Ansgar Wiechers · Accepted Answer · 2019-10-07 13:16:46Z

5

Don't parse wmic output unless you're pressed for performance (and even then you should do (wmic cpu get maxclockspeed) -notlike '*maxclockspeed*' rather than parse the processor name output).

Use Get-WmiObject (all PowerShell versions) or Get-CimInstance (PowerShell v3 or newer) with the Win32_Processor class and expand the relevant property (MaxClockSpeed).

Get-CimInstance Win32_Processor | Select-Object -Expand MaxClockSpeed

The value is in MHz.

edited Oct 7, 2019 at 13:16

answered Oct 7, 2019 at 12:01

Ansgar Wiechers

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