GPU processing option dissapeared

[Elusien]

Check out this post before attempting to switch GPU processing on:

How to enable GPU processing for preview playback?

My preview is incredibly slow/choppy from various edits/filters that I’ve put over my footage. I’ve seen that there’s a way to have the GPU handle doing the preview so that the playback is smoother, but I can’t seem to figure out how to turn that feature on.