# VRR, G-SYNC and FreeSync: how to verify it is actually working

> Enable variable refresh rate on Windows 11, check the cable/display/GPU chain, and test VRR instead of trusting a logo on the box.

**Tested on**

- Build: 26300.9457
- Edition: Pro (26H2)
- Architecture: x64
- Evidence: E1
- Verified: 2026-10-28

## The short answer

VRR lets the display refresh rate follow the GPU’s frame rate, reducing tearing and stutter without a fixed V-Sync cap. It requires the **whole chain** to support it:

**GPU + driver + display + cable + port + Windows setting + game mode.**

A “G-SYNC Compatible” or “FreeSync” logo is a claim, not proof that your current cable and port are using it.

## Enable it

1. Confirm the monitor’s VRR range and supported ports (some monitors support VRR only on DisplayPort).
2. Use a certified cable rated for the resolution/refresh you want.
3. In Windows: **Settings → System → Display → Advanced display**; set the highest refresh rate.
4. In the GPU control panel:
   - NVIDIA: enable **G-SYNC / G-SYNC Compatible**;
   - AMD: enable **FreeSync / Adaptive Sync**.
5. In the game: fullscreen/borderless as required, V-Sync off or driver-controlled, frame cap inside the VRR range.

## Verify, do not assume

- The display OSD may show the current refresh rate; watch it change with frame rate.
- NVIDIA/AMD control panel can show whether G-SYNC/FreeSync is active.
- Use a VRR test pattern or a game with a frame-time graph. A static desktop proves nothing.
- Test below, inside and above the VRR range. Above the range, V-Sync/tearing behaviour changes.

## Frame cap and V-Sync

A common baseline:

- cap FPS **3 below** the max refresh (141 at 144Hz) if the game’s limiter is reliable;
- enable V-Sync in the driver profile to prevent tearing above the cap;
- enable Reflex/Anti-Lag where supported;
- test input lag and frame pacing, not just “smoothness”.

Do not use a global cap that fights the game’s own limiter. One limiter is enough.

## Laptop and hybrid graphics

On a laptop, the display may be wired to the integrated GPU. VRR support depends on the panel and the OEM implementation, not only the discrete GPU. Check the OEM spec; a generic “G-SYNC laptop” claim may not apply to your exact model.

> **Caution: A logo is not a measurement**
>
> VRR can be enabled and still fail to engage because of the cable, port, driver or game mode. Verify the active state in the driver/OSD; do not infer it from the monitor’s marketing name.

## Sources

- [Microsoft — Variable refresh rate displays](https://learn.microsoft.com/en-us/windows/win32/direct3ddxgi/variable-refresh-rate-displays)
- [NVIDIA — G-SYNC](https://www.nvidia.com/en-us/geforce/products/g-sync-monitors/)
- [AMD — FreeSync](https://www.amd.com/en/products/freesync-monitors.html)

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Source: https://windows.homes/en/windows/gaming/vrr/