VRR
Variable Refresh Rate (VRR) is a technology primarily used in displays, such as computer monitors and televisions, to improve the viewing experience, especially for gamers. VRR synchronizes the refresh rate of the display with the frame rate of the content being shown.
VRR technologies, like AMD FreeSync and NVIDIA G-Sync (for PC monitors), and HDMI VRR or VRR through software updates (for TVs and gaming consoles), allow the display to adapt its refresh rate dynamically to match the frame rate of the content. For example, if a game is running at 45 frames per second (fps), the display will adjust its refresh rate to 45Hz, eliminating tearing and reducing stuttering.