![]() ![]() As the frame rate speeds up and slows down, the display renders each frame accordingly as instructed by your PC. As the GPU rotates the rendered frame into the primary buffer, the display clears the old image and gets ready to receive the next frame. With G-Sync active, the monitor becomes a slave to your PC. It manipulates the vertical blanking interval, or VBI, which represents the interval between the time when a monitor finishes drawing the current frame and the beginning of the next frame. On the PC end, Nvidia’s driver can fully control the display’s proprietary board. A G-Sync board contains 768MB of DDR3 memory to store the previous frame so that it can be compared to the next incoming frame. However, Nvidia uses a proprietary board that replaces the typical scaler board, which controls everything within the display like decoding image input, controlling the backlight, and so on. That deals with input lag and screen tearing. Instead of forcing your GPU to hold frames, G-Sync forces your monitor to adapt its refresh rate depending on the frames your GPU is rendering. ![]() It’s based on VESA’s Adaptive-Sync technology, which enables variable refresh rates on the display side. Nvidia introduced a hardware-based solution in 2013 called G-Sync. Once stable, Adaptive VSync locked the frame rate until the GPU’s performance dropped again. However, when the GPU struggled, Adaptive VSync unlocked the frame rate until the GPU’s performance improved. Like the older technology, Nvidia’s driver-based solution locked the frame rate to the display’s refresh rate to prevent screen tearing. Nvidia’s first alternative to V-Sync was Adaptive VSync. V-Sync forces your GPU to hold frames it has already rendered, which causes a slight delay between what’s happening in the game and what you see on screen. That solves the screen tearing problem, but it introduces another: Input lag. This software-based feature essentially forces your GPU to hold frames in its buffer until your monitor is ready to refresh. The problem is that the buffer and your monitor’s refresh rate may get out of sync, causing a nasty line of two frames stitched together. To keep things moving smoothly, your GPU stores upcoming frames in a buffer. Similarly, your monitor refreshes a certain number of times each second, clearing the previous image for the new frames your GPU is rendering. Your GPU renders a number of frames each second, and put together, those frames give the impression of smooth motion. USB-C charging laptops: Here’s what you need to knowīest graphics cards 2023: finding the best GPU for gaming ![]() What is 5G? Speeds, coverage, comparisons, and more ![]()
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