Zend certified PHP/Magento developer

PC Power consumption: what if i downclock cpu?

I’m thinking to downclock my home PC, to lower power consumption.
I found a BIOS option: CPU clock multiplier .. it was auto, i switched to 20x .
Before my cpu was clocked at 3.2ghz, now a 2ghz.

It is a Ryzen 5 3600.

Do you think i’m saving Watt ?

Thanks