Linus Tech tips has some great videos about it:

• Does High FPS make you a better gamer?

In short:

• In First person shoots, more frames per second, is better.
• For “slower” games, there is lite benefits to more frames then refresh rate.
• For “slower” games, there can be a power benifts to running the game at lower frames per second.

What @[email protected] and @[email protected] is say about frames per second and refresh rate is correct.

There is a nice tech demo, that you can play around with.

• is-asynchronous-reprojection-the-future-of-gaming
• New tech: Asynchronous Reprojection