https://www.pcgamer.com/grab-this-lenovo-27-inch-curved-g-sync-monitor-for-dollar300/

Premium priced 4K resolution monitors supporting both G-Sync and HDR visuals are right around the corner, though if you're only interested in G-Sync and want something that's sure to be less expensive, head over to MassDrop and check out Lenovo's Y27g.

The Y27G is a 27-inch monitor outfitted with a curved Samsung VA display. It's a Full HD 1080p panel, which is obviously much lower than 4K (and easier on your GPU), and is built for speed—it has a 144Hz refresh rate and 4ms response time.