How to Check CPU (Processor) Speed on Linux Server (CentOS/Debian/Ubuntu) – Knowledgebase

Wondering how you can check and confirm the clock speed of your server’s CPU? On a Linux server it is easy to do:

  • Access the server as the root user.
  • Exeucte the command: cat /proc/cpuinfo

The command will output a list of details for each physical CPU core, including lines like the following:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 60
model name : Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz

In the “model name” line, you can see the processor’s make/model and clock speed listed. This information is usually authoritative. 

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