Not sure if this has been answered, but if I am running the Quality mode on an X but only have a 1080p tv, will the graphical effects still be present? Will it still run at 60 fps with graphical effects on?
If you run in quality mode then you will get all the enhanced effects. The game will render at 4K and your console will supersample to 1080p so you will get the cleanest image possible. But it will run at 30FPS obviously. If you run in performance mode you get 60FPS obviously with the effects dialled down.