What's the difference between Frame Rate and Refresh Rate?

https://feddit.uk/post/573008

What's the difference between Frame Rate and Refresh Rate? - Feddit UK

So I’ve been tweaking my Steamdeck settings and whilst I don’t consider myself a total noob to this…I’m legitimately not sure what the difference is between the two, or which is more important to the overall smoothness of the game I’m playing.

Frame rate is how many frames per second your game is running at, refresh rate is how many times per second your monitor refreshes. So 60fps at 60hz means you’re running and seeing 60fps properly.

If your screen is at 30hz, and your game is running at 60fps, you’re only seeing 30fps.

Try to keep them matched up for a better experience.

Theoretically, is there any reason to set a game to lock at 30fps but then run the display at say 60hz?
For power saving. If you play unlocked then the engine generates more frames while consuming more power.