G-Sync gaming monitors are notorious for two things: giving you an extremely smooth gaming experience and being very expensive. Unfortunately, those are the breaks, as G-Sync monitors fall under a greater amount of scrutiny and quality assurance from Nvidia, not to mention the costly proprietary G-Sync module.
Well, I should say those were the breaks, as more recently, the cost of G-Sync displays has come down precipitously. What’s more, Nvidia has enabled G-Sync to work on FreeSync at the beginning of the year, vastly expanding the compatibility of Nvidia’s VRR technology with a much larger group of affordable FreeSync gaming monitors.
Source: IGN.com G-Sync On a Budget? It's Possible With These Cheap Gaming Monitor