[paulmd]

I tried a 28" (TN) 4K, an Acer B286HK. Horrible ghosting and capacitor whine - if I had Wikipedia open you could hear the capacitors scream from across the room, and lines would blur into each other while scrolling. I eventually replaced it with a Dell P2715Q (IPS) too, and that's a really great monitor.

All in all though I would have been better off going 1440p at 27". I need some DPI scaling that probably gets me back to 1440p anyway, and it would be easier to drive in video games.

So that's what I recommend now based on personal experience. YMMV, but the Crossover 2795QHD seems ideal for productivity work. The Acer XB270HU or XF270HU are ideal for gaming, but adaptive sync is unnecessary for productivity so you might as well get a Crossover instead.

[slantyyz]

I do agree that 1440p is probably best for most people. Most of the people who see my setup just ask "How the hell do you do that?"

I'm one of those people who has a bad habit of having 50 windows open at any given time. Sure I could change my habit, as I actually "only" need tiles of about 10 screens at any given time, but so far, having two 27" 4K monitors side by side has improved my productivity significantly.

I originally had them stacked vertically, but I changed the orientation to side by side landscape when I changed desks, and I found the new wide orientation works even better for me. Having needed reading glasses for the past few years also helps, because the glasses I have magnify the screens a little bit too, so it helps.