Variable Refresh Rate (VRR) is a display technology that enables a screen (such as a monitor or TV) to dynamically adjust its refresh rate in real-time to match the frame rate being output by a source device (like a gaming PC or console). This synchronization eliminates visual artifacts, such as screen tearing and stuttering, resulting in a significantly smoother and more responsive visual experience, especially in gaming.

Key Technical Specifications

VRR Range

Definition: The specific minimum and maximum refresh rates (e.g., 40Hz - 144Hz) between which the VRR technology is active and effective.

Context: If the game's framerate falls below this range (e.g., 35 FPS), traditional issues like tearing or stuttering may recur.

Low Framerate Compensation (LFC)

Definition: A feature that extends the effective VRR range. When the framerate drops below the monitor's minimum VRR range, LFC automatically multiplies the framerate and refreshes the display multiple times per frame.

Overdrive

Definition: A monitor setting that controls the speed at which liquid crystals move, reducing ghosting and pixel response time.

Context: With VRR, the optimal overdrive setting can change with the refresh rate. Higher-end VRR implementations may feature Dynamic Overdrive, which automatically adjusts the overdrive level to match the current refresh rate for optimal image clarity.

MPRT (Moving Picture Response Time)

Definition: A measurement of perceived motion blur, different from the panel's native GTG (Grey-to-Grey) response time.

Context: VRR itself does not directly improve MPRT, but the higher refresh rates often used with VRR displays inherently reduce perceived motion blur.

Tag：VRR