What is gsync on or off?

G-Sync is a technology developed by Nvidia that synchronizes the refresh rate of a computer monitor with the graphics card's output. This eliminates screen tearing, input lag and stuttering, resulting in a smoother and more immersive gaming experience. When G-Sync is turned on, the monitor's refresh rate matches the graphics card's frame rate, which provides tear-free and seamless images. However, G-Sync can be demanding on system resources, and it may cause some latency in certain situations. Therefore, turning G-Sync off can be beneficial in reducing input lag or if you have an older graphics card that doesn't support it. Ultimately, the decision to turn G-Sync on or off depends on the specific needs and preferences of each individual user.