- Mar 31, 2014
This was confirmed by Austin as well, there's still time to go to change things, but apparently they had set aside 1GB memory for the UI, but developers wanted to use it for games, so they reduced it somewhat and gave ?? back and render the UI in 1080p and SDR. The PS5 was confirmed to be able to output the home UI in HDR and 4K.
The PS4 Pro already had some extra DRAM so a 4K UI wouldn't touch the GDDR memory.