From X-bit Labs: Nvidia Corp. on Friday unveiled its new G-Sync technology that solves the decades-old problem of onscreen tearing, stuttering and lag by enabling synchronization between the GPU and the display. The technology will require special monitors with integrated G-Sync module (pictured below), which will be available from companies like Asustek, BenQ and ViewSonic.
Since their earliest days, displays have had fixed refresh rates – typically 60 times a second (hertz). But, due to the dynamic nature of video games, GPUs render frames at varying rates. As the GPU seeks to synchronize with the monitor, persistent tearing occurs. Turning on V-Sync (or Vertical-Sync) eliminates tearing but causes increased lag and stutter as the GPU and monitor refresh at different rates. Nvidia G-Sync technology synchronizes the monitor's refresh rate to the GPU's render rate, so images display the moment they are rendered. As a result, scenes appear instantly, objects are sharper, game play gets smoother.
"Our commitment to create a pure gaming experience led us to G-Sync. This revolutionary technology eliminates artifacts that have long stood between gamers and the game. Once you play on a G-Sync monitor, you will never want to go back," said Jeff Fisher, senior vice president of the GeForce business unit at Nvidia.
G-Sync technology includes a G-Sync module designed by Nvidia and integrated into gaming monitors, as well as hardware and software incorporated into certain Kepler-based GPUs (GK110, GK104 and GK106). Each G-Sync module resembles MXM card and features a custom ASIC with its own memory buffer.
Many of the industry's leading monitor manufacturers have already included G-Sync technology in their product roadmaps for 2014. Among the first planning to roll out the technology are ASUS, BenQ, Philips and ViewSonic.
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