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Do you have multiple monitors or just one?

You can read more about it here: https://www.nvidia.com/en-us/geforce/products/g-sync-monitors/

Acer VG270UP, ACER VG271UP (adds support for hdr, though it's pretty useless hdr400), Acer XV272UP (same panel, better stand) BENQ EX2780Q (same panel as acer) You can also take a look at: LG 27GL850-B HP X27i 2K Gaming

In nvidia control panel under manage multiple monitors tab there's a tick near to each monitor, you can untick it to disable the monitor in question. Though it's not very "easy".

If just for Gaming, go for TN, if you plan to do some other things as well, go IPS

G-sync/Freesync can compensate for lower fps in non-competitive games, so it will be less noticeable. Go for higher hertz.

Even with 1 DP output you can potentially run up to 5 MST DP monitors, as long as they support this feature.

You're lucky to have DVI output. Newer cards don't have that, so you have to buy expensive DP-DVI active converter. (They have 3xDP usually, so you're fine as long your monitor has DP)

Acer XV272U P (ACER Nitro XV272UPbmiiprzx [um.hx2ee.p01]) G-Sync compatible as of 441.66 or newer Having problems in multi-monitor setup I am experiencing blackouts (monitor going black screen and back on again) with 100% reproduction on my config and with a 100% fix that works only until reboot. The setup is: Ryzen 5 1600, KFA2 GeForce 1080ti, 24GB RAM, Windows 10 x64 1909, Nvidia drivers ver. 442.19 DP-DP Acer XV272UP 144Hz 1440p G-sync compatible DP-HDMI Dell S2340L 60Hz 1080p DP-DVI Old Sony XDM-X72 60Hz 1280x1024 HDMI-HDMI bbk TV 60Hz 4K Whenever I start Pendulum demo in G-sync mode the screen starts flickering \ blacking out like crazy (every second the screen goes black for 2-3 seconds). I've tried everything from changing cables and installing display drivers, trying all sorts of different nvidia drivers with clean install using DDU to even replacing GPU - nothing helped, except one thing. The solution that works for me without fail to stop the flickering while still enjoying g-sync on multi-monitor setup (4 monitors): Start Pendulum demo normally Unplug all other monitor cables from GPU (leaving the g-sync one in) Wait a few seconds to make sure flickering/blackout is gone and plug them back again After that there are no flickers at all. But it only works until reboot. After reboot you have to do this procedure again. Even after sleep/hibernate. I Hope this helps someone and hope Nvidia comes up with a more elegant way to fix it without having to replug cables every boot. I have also tested and reproduced this same bug on completely different PC, running latest (442.19) nvidia drivers, w10 x64 1909, this time on Intel platform instead of AMD, so there's no correlation with that as well. This definitely looking more and more like a driver g-sync issue rather than anything else. So the other PC also had multiple monitors connected: Via DVI: BenQ XL2411t 1080p 144hz Via DP: DELL 3008WFP 1600p 60hz I have added g-sync monitor and started Pendulum test - the screen was blinking - going black for 2-3 seconds.. I applied my fix that I described above, but this time I unplugged only one monitor - my DELL that was connected on other DP and then plugged it back after a few seconds. Results are astonishing: once again g-sync is working perfectly with NO black screen for 2-3 seconds. The g-sync is working fine when the monitor is the only one that is connected, also there are no blinking when g-sync is switched off even in multi-monitor mode. Hope this helps someone. I've also sent this bug report to nvidia.