Screen tearing, stutter, and input lag often get blamed on the same setting, but they have different causes. V-Sync controls when the GPU presents frames to a fixed-refresh display. Variable Refresh Rate, or VRR, changes the display’s refresh timing to follow the GPU. G-Sync and FreeSync are branded implementations of VRR.
What V-Sync actually does
A fixed-refresh monitor updates on a schedule. A 60 Hz display refreshes 60 times per second, while a 144 Hz display refreshes 144 times. If the GPU sends a new frame while the monitor is partway through drawing the previous one, the screen can show pieces of two frames at once. That visible horizontal split is screen tearing.
Traditional V-Sync waits for the monitor’s refresh interval before presenting a completed frame. It removes tearing, but the wait can increase input latency. When the GPU cannot maintain the target refresh rate, frame delivery may also become uneven, producing noticeable stutter.
Nvidia’s Adaptive V-Sync explanation describes the tradeoff directly: tearing tends to appear at high frame rates, while stutter becomes more obvious when frame rate drops. Adaptive V-Sync turns synchronization off below the refresh target to reduce that stutter, but tearing can return.
How VRR changes the problem
VRR lets a compatible monitor adjust its refresh rate to the GPU’s current frame rate. If a game is running at 83 frames per second, the monitor can refresh around that pace instead of forcing frames into a fixed 60, 120, or 144 Hz schedule.
Within the monitor’s supported VRR range, this reduces tearing and makes fluctuating frame rates look smoother without the normal latency cost of fixed V-Sync. AMD explains that FreeSync synchronizes display refresh with compatible graphics output and can be configured globally or per game in Adrenalin software.
VRR is not magic. Every display has an operating range, such as 48 to 144 Hz. Below the lower limit, Low Framerate Compensation may repeat frames on supported monitors. Above the maximum refresh rate, VRR cannot keep following the GPU, so tearing or a V-Sync-style limit can return.
G-Sync, FreeSync, and Adaptive-Sync
FreeSync uses standards such as DisplayPort Adaptive-Sync and HDMI VRR. G-Sync Compatible monitors also use open Adaptive-Sync behavior but are validated by Nvidia. Traditional G-Sync monitors include dedicated Nvidia hardware and usually support a wider controlled range plus variable overdrive.
The logo alone does not guarantee identical results. Check the exact monitor model, connection type, certified VRR range, and whether the feature works over HDMI, DisplayPort, or both. A monitor may advertise FreeSync but still show flicker or poor overdrive at the low end of its range.
Should V-Sync stay on when VRR is enabled?
The safest general setup is to enable VRR, keep the driver’s synchronization option enabled, and cap the game’s frame rate a few frames below the monitor’s maximum refresh rate. For a 144 Hz monitor, a cap around 140 or 141 FPS is common. The cap keeps the GPU inside the VRR range, so the system rarely reaches the upper boundary where conventional V-Sync behavior may add latency.
Turn off the game’s own V-Sync option when the driver manages synchronization, unless a specific game behaves badly. Some titles handle frame pacing differently, so test per game instead of forcing one universal rule.
Competitive players may prefer V-Sync off and accept occasional tearing for the lowest possible latency, especially when frame rates stay far above the display’s refresh rate. Most single-player gamers get a cleaner experience from VRR plus a sensible frame cap.
What if a game still stutters?
VRR cannot fix every stutter. Shader compilation, background tasks, CPU limits, storage access, and network spikes can all interrupt frame delivery. Our guide to shader compilation stutter helps identify hitches that a monitor setting cannot remove.
Also confirm that Windows uses the monitor’s maximum refresh rate, the display’s Adaptive-Sync option is enabled in its on-screen menu, and the GPU driver reports VRR as active. Borderless-window games may rely on Windows’ presentation path, so the Windows 11 windowed game optimizations setting can matter for older DirectX games.
Recommended starting settings
- Single-player games: enable VRR, enable driver-level sync, and cap FPS slightly below maximum refresh.
- Competitive games: enable VRR and use a low-latency frame cap, or disable sync entirely if minimum latency matters more than tearing.
- Frame rate below the VRR range: lower demanding graphics settings or use a display with Low Framerate Compensation.
- Persistent flicker: test another cable, disable monitor overclocking, and check the certified VRR range.
VRR is usually the best foundation because it follows real frame delivery instead of forcing the GPU into a fixed schedule. V-Sync remains useful as a boundary control, but it works best when a frame cap prevents the game from constantly hitting that boundary.