So you just need 3 4090’s with 1 displayport each to the monitor and a whole new version of sli.
… I actually wonder if the graphics cards could multiplex across multiple dp to a single display.
I vaguely remember that being a thing for early commercial 8k projectors, but I don’t know anything about the implementation.
Isn’t 4k 360hz equivalent to 1080p 1440hz? I wouldn’t expect 1000hz at 4k any time soon but 1080p in competitive FPS is easy