Which Monitors Have Native G-SYNC Support? Newer G-SYNC displays, such as the LG 38GL950G, also support Adaptive-Sync over DisplayPort as well as HDMI-VRR in addition to supporting G-SYNC over DisplayPort.Įven some revisions of older G-SYNC monitors such as the Dell AW3418DW now support Adaptive-Sync over DP. Keep in mind that G-SYNC monitors usually only support G-SYNC over DisplayPort. So, an Adaptive-Sync/FreeSync/G-SYNC Compatible monitor with a 30-60Hz VRR range supports LFC, but a monitor with a 40-60Hz range does not. They also support frame rate multiplication via the AMD LFC (Low Framerate Compensation) technology, but only if the maximum refresh rate of a monitor is at least double the lower end of the VRR range. In contrast, most monitors that use Adaptive-Sync have their VRR range start at 40Hz or 48Hz. All G-SYNC monitors support VRR down from 30Hz up to their maximum refresh rate.īelow 30Hz/FPS, the frame rate gets multiplied (for instance, 29FPS -> 58Hz, 14FPS -> 42Hz, etc.) in order to keep tearing at bay. So, G-SYNC monitors usually have excellent overdrive implementation, but there are FreeSync – or G-SYNC Compatible models that work just as well even though they’re not as common.Īnother advantage of having a dedicated G-SYNC module is a wide variable refresh rate (VRR) range.
Then there are non-G-SYNC monitors that have excellent overdrive implementation where a single mode works perfectly well across the entire refresh rate range, but this is rare.įinally, OLED monitors don’t benefit from variable overdrive as they have instantaneous pixel response time speed regardless of the refresh rate. Some G-SYNC monitors with a very wide range, such as the ASUS PG27AQN that goes up to 360Hz, require you to change its overdrive – below 100Hz in this case for optimal performance. G-SYNC’s variable overdrive can change on the fly according to your refresh rate, thus removing ghosting at high frame rates and preventing pixel overshoot at lower frame rates. Now, at 144Hz, the ‘Strong’ overdrive mode might perfectly eliminate all trailing, but it also might be too aggressive if your FPS drops to ~60FPS/Hz, which will cause inverse ghosting or pixel overshoot.įor optimal performance in this case, you would need to manually change the overdrive mode according to your frame rate, which isn’t possible in video games where your frame rate fluctuates a lot.
The problem here is that different refresh rates require different levels of overdrive. However, most monitors without G-SYNC don’t have variable overdrive, but only fixed modes for instance: Weak, Medium and Strong. Gaming monitors use overdrive to push their response time speed so that the pixels can change from one color to another fast enough to prevent ghosting/trailing behind fast-moving objects. In addition, a dedicated G-SYNC module offers variable overdrive. Unlike V-Sync, though, G-SYNC does not introduce a significant input lag penalty. It allows the monitor to change its refresh rate dynamically - according to GPU’s frame rates (Hz=FPS), which in turn eliminates screen tearing and stuttering as long as your FPS doesn’t exceed the monitor’s maximum refresh rate. G-SYNC monitors have a special chip installed in them that replaces the regular scaler. There are also monitor product pages that claim that the display is ‘G-SYNC Compatible,’ yet it’s not officially certified by NVIDIA as such.Ĭontinue reading to learn what exactly is the difference between G-SYNC and G-SYNC Compatible monitors, and how can you check whether a monitor has a G-SYNC module and if it is officially certified as G-SYNC Compatible or not. In fact, you can now find ‘NVIDIA G-SYNC’ stickers on monitors that don’t have dedicated G-SYNC modules. The G-SYNC chip offers certain advantages at a higher cost, such as a wider variable refresh rate (VRR) range, marginally lower input lag and variable overdrive.Īfter the introduction of NVIDIA’s G-SYNC Compatible program, it didn’t take long for monitor manufacturers to manipulate it for advertising purposes. Native ‘G-SYNC’ support implies that a monitor has a dedicated module installed by NVIDIA, while ‘G-SYNC Compatible’ relies on VESA’s Adaptive-Sync protocols over DisplayPort, HDMI and/or USB-C connection.
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