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.

[From the RedArray Knowledgebase: https://www.redarray.net/portal/knowledgebase/29/How-to-Check-CPU-Processor-Speed-on-Linux-Server-CentOSorDebianorUbuntu-.html]