YouTube has rolled out support for videos at both 720p and 1080p running at 60 frames per second. What does this mean? It means much smoother video replay.
Pulling up this recording of Mario Kart 8, you can see how much smoother it is once you select one of the two higher FPS settings. To be honest, I was surprised at how much better this video looked both on my computer and on my phone. You can see for yourself flipping back and forth between 480p and 720p60. It's a pretty big difference not only in resolution, but smoothness.
I'm sure there will be plenty of gamers out there taking advantage of this feature to show off their skills so bring on the new era of high FPS videos!