I've been playing it at 4k, mix of ultra and high settings and getting a stable 30 fps on a single 980. The game looks gorgeous on this display, especially at night. Turn on HBAO+ and the shadows/blacks are perfect.
I think the discussion is good. Better that buyers have more information than less about possible drawbacks.
For people still on the fence about this monitor, consider that you are looking for a good 4k monitor in the $750-$1000 price range. There will be compromises this early in the tech...
Ok. Just to be clear on my own UN40JU6500. This is the status.
Device Type - PC - Firmware 1206 (I have no image for it, but 1207 looks the same)
Device Type - Game - Firmware 1206
Device Type = Game - Firmware 1207...