Thanks!
Unfortunately apple doesn't support nvidia anymore and this is the only card that I have, and have invested a lot of money in it.
This means I do all my work in windows now since Resolume/Ableton/Max do not run on linux.
With version 7, I can record 7680x2160 composition for hours on my desktop, while Resolume still runs at 60FPS.
EGPU eh?I'm guessing it's working for most people because people usually have an internal GPU (ie. don't rely on a thunderbolt link) and use lower resolutions.