Samsung just announced the world’s first FreeSync 2-enabled PC monitors, the 27- and 32-inch CHG70 and the utterly massive 49-inch CHG90 ultrawide display—which is essentially a multi-monitor setup without multiple monitors. Samsung’s displays extend the battle between AMD’s FreeSync and Nvidia’s G-Sync technologies to the budding field of high-dynamic range monitors. Nvidia’s already teased several G-Sync HDR gaming monitors from Asus …