Wish there was a better selection of IPS G-Sync monitors out there. The new Asus PG279Q is having some quality control issues and is almost $800. I can get a 50" Samsung UHD 4k Smart TV for that.
I went big years ago. Your brain and reflexes will adjust to whatever tiny amount of input lag there might be. I use a set of low input lag LG ips 1080p tvs in a surround setup. I tried out a 27 inch monitor surround setup after using a 40 inch Samsung VA panel for a couple of years. Couldn't do it. Incidentally, I liked the VA panel more than I like these IPS panels.
Rtings.com - TV Reviews - Best TV Recommendationsis a great site for hdtv reviews. Can order reviews by input lag, etc.
I was so very close to grabbing one of those samsung curved 4ks. They do 4:4:4 chroma,
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The Samsung ju7500 measures a measly 21.1ms input lag in Game mode. You won't notice that. Small price to pay for a glorious curved 40 or 48 inch mini imax on your desk.
The cheaper ones, the ju7100, js6700, and js6500, all measure in the mid 20s input lag. Still very low. There are some finicky things about the settings. And some characteristics that you might or might not be sensitive to, like the backlight pwm, ghosting etc. And the caveat that to get the extremely low input lag, you need to be in Game mode, which only does 4:2:2 chroma and turns off many image processing features. Still pretty good, and can always switch to pc mode for internet use if it's a problem. If you grab one, I would suggest reading the thread on Hardforum about them. Lots of good info in there about settings, firmware etc.
This thread:
New Samsung 4k for everyone. - [H]ard|Forum
Samsung JU7500 Review (UN40JU7500, UN48JU7500, UN50JU7500, UN55JU7500, UN65JU7500, UN78JU7500)
I think this is the last day they are on sale. The 48 inch js6700 for $800, or the 40 inch for $650, both very tempting. Or the flat versions, the 6500, for a hundo less on the 48 inch, 50 less on the 40 inch. But I'm going to run this surround setup personally a while longer. I'll get some more use out of it, wait for Pascal and further 4k iterations I guess.
Also, I've never used a G-sync monitor. But I find a nice, steady 60 fps to be pretty fuckin smooth, so maybe I just don't know what I'm missing.