[Reddit]

Yes, I achieved the most FPS in Minecraft most likely. You can follow my steps to get extremely high fps also.
Here is a screenshot.
How to do it:
Turn all your settings on the worst possible. Short - Smooth Lighting Off - Particles Minimum - etc. This includes sound and music off! Next, look up into the sky. Press F3, then F1. After about 10 seconds, press F1, and you should have a very high amount of FPS before it updates again.
Not as high as I have? Not even close? Well, first you need to change your Java.exe to realtime priority. Just look it up. Make sure to save all programs on your computer. It might crash! It took me 3 tries before it didn't crash. Once you've gotten that done, close all programs. Then. you need to kill all processes of most programs. You can do this by getting OpenedFilesView. After that, open up Minecraft. Yeah, the front page might have a good 20000 FPS (you can see this in the fraps fps meter). Now open up a world and do the same thing. You should have around the same amount that I have, if you have a gaming PC.