As far as I know, it shouldn't be a problem at all. If G-Sync actually works how nvidia is claiming it does, your monitor's refresh rate will just go down to 30 for 30 fps games. No headache, until you look in your wallet. Unless you're rich.
[opinion]I wouldn't buy a G-Sync monitor, though. Spending more money for a gimmick that hardly effects your experience. A proprietary one, in fact, and you know how nvidia loves forcing their customers to never buy an AMD product[/opinion]
[opinion]I wouldn't buy a G-Sync monitor, though. Spending more money for a gimmick that hardly effects your experience. A proprietary one, in fact, and you know how nvidia loves forcing their customers to never buy an AMD product[/opinion]