Oh yes if you have a monitor with more than 60 fps yes it will cap to the hz of your monitor. As you said earlier yes there is a way to lock fps with nvidia graphics card (I have an AMD one so I don't know how to) so go with that, it's easy and it doesn't need external programs like Afterburner.

To lock at 60 fps you just need to enable vsync, for anything higher MSI Afterburner is the way most people lock them.

I play at 60 fps so vsync is what I use, I have never tried Afterburner before, but online there are a few tutorials of how to lock fps with it.