What do you prefer for 4K PC and Console Gaming on your desk? 32" or 40-43"?

I'm currently looking to augment or replace my current 2x24" Dell UltraSharps with a 4K HDR monitor. Primarily I'll be doing PC work for development and drafting, but would also like to do some light console gaming in HDR as well. Eventually I'll be setting up a home theater with likely an OLED for more serious movie watching and gaming, but I figure right now I might as well get a mixed-used display for my office.

• My current Dell monitors are 1920x1200, roughly 96ppi (IPS screens)
• I don't mind scaling my display in Win10. My eyes are good but I don't like to strain if I don't have to.
• I'm currently using an IKEA Galant Desk, and I figure a screen would sit a bit more than arm's length away

Two screens I'm considering are the TCL 43S405 since it's a great value, and the Monoprice 32" 4K monitor. The new Philips Momentum also looks really well-suited, but it's not yet out and will be relatively expensive. Open to other options, and ideally I'd like to keep my budget under $500.

So, what are you using and why?

I use a Sony x800D 43" 4k HDR till the promised (Jan 2017) ROG Swift PG35VQ comes out.

I recently upgraded to a Sony 43" x720E (IPS) from a 27" dell ultrasharp 1440 + ancient 19" 4:3 ultrasharp setup I had been running for six years. Drafting and development are great on this display.

43 @ 2-3ft
Nothin better!

I’ve had 49”, 48”, 43”, 40” and 28” 4K since 2015. I’m most comfortable with 40” and 43”. Currently using a Samsung 40” MU7000 mounted on an ErgoTech monitor arm. I sit two feet from it and really like what I’m seeing.

I'm on a 40" 4K Samsung KU6290. Could only be happier if it had decent HDR. Size is perfect, wall mounted, 3 feet from my face.

40" Wasabi Mango UHD400 wall mounted, I find it to be an excellent size for desktop use.

30-32" would be about right for me. I don't have a deep enough desk to put a 40"+ display far enough that its size isn't an issue.

I have the Phillips 43" 4K BCM4350UC, great for productivity and not bad for gaming.

From a productivity standpoint it starts to get difficult to read text above 100ppi, which is what the 43" 4K is (same as 30" 1600p and 22" 1080p).

In a pure gaming environment a 32" 4K might be more appealing as antialiasing becomes less of an issue with all the extra pixels. However, as always the GPU is a bottleneck at 4K resolutions.