Right just a few notes from some redonkulious testing. 16k looks off the cards unless you have masses of VRAM (though saying that Rayman Origins did take 15360x8640 but seeing as that is sprite based it's not surprised). Did get Dead Space to run at 11520x6480 and ran quite well until using stasis when everything went to crap.
Also saving screenshots at the res didn't work at all bar 1 time but I'm guessing the fact it came back with a 285mb bitmap file might be the reason
I'm keeping a list of what's been compatable for me and what have crashed or failed if not as well as what resolutions work if it's needed.
Tried to scale the UI in ME3 and it went about 5% bigger so still impossible to see.
Also saving screenshots at the res didn't work at all bar 1 time but I'm guessing the fact it came back with a 285mb bitmap file might be the reason

I'm keeping a list of what's been compatable for me and what have crashed or failed if not as well as what resolutions work if it's needed.
Tried to scale the UI in ME3 and it went about 5% bigger so still impossible to see.