![]() We expect most people to use G-Sync for the smoothness it provides, while esports enthusiasts will prefer ULMB for its responsiveness and clarity at the expense of tearing. That means users need to choose between variable refresh rates without stuttering and tearing, or high clarity and low motion blur. However, this feature can't be used in conjunction with G-Sync. The feature works at high fixed refresh rates, typically at or above 85 Hz, though it does come with a small brightness reduction. This helps improve smoothness even at low frame rates.Īdditionally, G-Sync includes a feature called Ultra Low Motion Blur (ULMB) which strobes the backlight in sync with the display's refresh rate to reduce motion blur and improve clarity in high-motion situations. When this happens, the refresh rate will become double the frame rate, so at 25 fps, the monitor will operate at 50Hz. LFC works when the frame rate drops below the refresh rate window, typically 30 frames per second. This feature is found on FreeSync Premium and Premium Pro monitors, but isn't always found on monitors with standard FreeSync. Every G-Sync monitor comes with Low Framerate Compensation (LFC), ensuring that even when the framerate drops, there won't be any ugly judders or image quality issues. One advantage of G-Sync is that it continuously tweaks monitor overdrive on the fly to help eliminate ghosting. While the benefit of variable refresh rates is more or less the same between the two standards, they have a few differences outside of that single feature. At higher refresh rates, the benefit of adaptive sync is reduced, though the technology still helps to remove screen tearing and stutters caused by frame rate fluctuations. The improvement is pretty noticeable, giving low frame rates a level of smoothness on par with 60 FPS. By matching these two rates, it mitigates the gross looking artifact known as screen tearing. Essentially this feature informs the display to change the monitor's refresh rate based on the framerate put out by the GPU. ![]() The basic goal of both G-Sync and FreeSync is to cut down on screen tearing through adaptive sync or variable refresh rate. There are also G-Sync Compatible monitors, which are FreeSync monitors that Nvidia has deemed "worthy" of meeting their G-Sync standards. For example, G-Sync Ultimate monitors feature an HDR Module and the promise of higher nits rating, while regular G-Sync Monitors only feature adaptive sync. In early 2019 after Nvidia began to support FreeSync monitors, it added a few tiers to its G-Sync certified monitors. As a result, only Nvidia GPUs can take advantage of G-Sync monitors. G-Sync uses a proprietary Nvidia module in place of the usual display scaler and offers a few additional features like Ultra Low Motion Blur (ULMB) and Low Framerate Compensation (LFC). FreeSync Premium Pro adds HDR support to that list. That's where variable refresh rates solutions like FreeSync and G-Sync come in.įreeSync monitors use the VESA Adaptive-Sync standard, and modern GPUs from both Nvidia and AMD support FreeSync monitors.įreeSync Premium monitors add a few more features like higher refresh rates (120Hz or greater at resolutions of 1080p or higher) and low framerate compensation (LFC). Normally you can just use V-Sync to lock the frame rates to your monitor's refresh rates, but that introduces some issues with input lag and can throttle performance. VRR prevents stuttering and screen tearing by adjusting the refresh rate of the monitor to the frame rate of the content on the screen. The Skinny on Adaptive SyncįreeSync and G-Sync are examples of adaptive sync or variable refresh rate for monitors. Here's an update on everything you should know as of 2021. The two features used to be fairly different, but after some updates and rebranding, things today have synched the two pretty nicely. Adaptive sync display technologies from Nvidia and AMD have been on the market for a few years now and gained plenty of popularity with gamers thanks to a generous selection of monitors with plenty of options and a variety of budgets.įirst gaining momentum around 5 years ago, we've been closely following and testing both AMD FreeSync and Nvidia G-Sync and plenty of monitors packing both.
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