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Adaptive sync is a variable-refresh-rate (VRR) feature that lets a compatible monitor change its refresh timing to follow the graphics card’s changing frame output. It is designed to reduce visible tearing and uneven motion when a game’s frame rate is not constant. To use it, enable the monitor’s Adaptive-Sync, FreeSync, or VRR option first, then enable or verify the matching feature in your graphics software.
The monitor, graphics card, driver, connection, refresh-rate setting, and game mode must all support the same VRR path. A VRR label on a monitor does not prove that every input, cable, resolution, or window mode supports it.
What adaptive sync changes on screen
A conventional monitor refreshes at a fixed cadence, such as 60, 120, or 144 times per second. The graphics card renders frames independently. When the two timings do not line up, the monitor can begin drawing one frame before the previous frame has finished. The result is a horizontal tear, where portions of two frames appear at once.
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Adaptive sync changes the display’s timing instead of forcing the graphics card to deliver a frame at one fixed interval. When the graphics card finishes a frame, the monitor refreshes for that frame, within the display’s supported VRR range. NVIDIA describes G-SYNC as matching the monitor refresh rate to the GPU frame rate, while AMD describes FreeSync as synchronizing display refresh with compatible graphics output.
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The practical benefits
- Less tearing: the display is less likely to scan through a frame while a new one is being rendered.
- Smoother variable frame rates: motion can look more even when a game moves between frame rates instead of staying exactly at the monitor’s fixed refresh rate.
- Less stutter from traditional synchronization: the display does not have to wait for a fixed refresh boundary in the same way as a conventional fixed-refresh setup.
These are intended benefits, not a guarantee of identical results in every game. A monitor’s VRR range, the graphics driver, the selected input, the frame rate, and the game’s presentation mode all affect behavior. Adaptive sync also cannot make a graphics card render frames faster; it only coordinates display timing with the frames that are actually produced.
Adaptive Sync, VRR, FreeSync, and G-SYNC: what the labels mean
“Adaptive sync” is commonly used as a general description of variable refresh. FreeSync and G-SYNC are vendor technologies and certification or validation labels that can sit on top of that capability.
| Label | What it refers to | What you should verify |
|---|---|---|
| VRR | General variable-refresh operation. | The exact supported range, inputs, resolutions, and operating-system or driver support. |
| DisplayPort Adaptive-Sync | An industry-standard feature of a DisplayPort link used by technologies such as FreeSync. | Whether the monitor and graphics output support it on the particular DisplayPort connection. |
| VESA AdaptiveSync certification | A standards-based display certification. | Do not assume it is the same as AMD FreeSync certification; check the monitor’s exact certification and specifications. |
| AMD FreeSync | AMD’s variable-refresh technology for compatible displays and graphics systems. | FreeSync support, tier, connection type, and the display’s minimum and maximum refresh rates. |
| NVIDIA G-SYNC | NVIDIA’s G-SYNC display technology and associated validated products. | The specific G-SYNC display requirements for your graphics card, driver, connection, and operating system. |
| G-SYNC Compatible | A display validated by NVIDIA for G-SYNC behavior without necessarily using the same hardware implementation as a dedicated G-SYNC display. | Whether your exact model is validated, or whether you are merely trying the setting on an unvalidated VRR display. |
NVIDIA also provides an option to try G-SYNC settings on some VRR displays that have not been validated. That can be useful for experimentation, but it does not make the display certified or guarantee a stable result.
Check compatibility before changing settings
Do these checks before troubleshooting a missing menu option. They prevent a software setting from being blamed for a hardware or connection limitation.
Confirm that the monitor supports variable refresh
Read the monitor’s manual and specifications, then open its on-screen display (OSD). Look for a setting named Adaptive-Sync, FreeSync, VRR, or a similar term. The name and location differ by model. Some display presets or picture modes can turn the feature off, so use the manufacturer’s recommended mode if the setting is unavailable.
Use a supported graphics output
Connect the monitor to an output on the discrete graphics card when one is installed, rather than assuming that every motherboard or docking-station output carries the same VRR capability. AMD documents FreeSync over DisplayPort and HDMI on certified displays. Its older setup guidance describes DisplayPort 1.2 or later for the DisplayPort configuration it covers, but that is not a universal cable requirement for every monitor. Check both the monitor and graphics-card manuals for the exact port and cable combination.
Install a suitable graphics driver
Install the current driver branch supported by your graphics card and operating system, then restart if the installer requests it. Driver menus and supported combinations change over time, so the current documentation for your hardware takes precedence over a generic screenshot.
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Set the intended refresh rate first
In your operating system’s display settings, select the monitor’s intended refresh rate rather than leaving it at a low default. A display running at 60 Hz may expose a different VRR range or behavior than the same display running at 144 Hz. Selecting a refresh rate does not by itself enable VRR; it establishes the operating mode in which you will test it.
Check multi-monitor arrangements
If more than one display is connected, identify the gaming monitor by its model or position. Both graphics vendors’ software can show status for a selected display, and checking the wrong screen can make a working setup appear unavailable.
Enable adaptive sync on the monitor
- Open the monitor’s OSD using its joystick or control buttons.
- Open the gaming, display, or system section where the manufacturer places synchronization controls.
- Turn on Adaptive-Sync, FreeSync, VRR, or the equivalent option.
- Apply the change and exit the OSD. If a preset or image mode disables the option, switch to a mode recommended by the monitor maker and check again.
- Confirm that the cable is connected to the intended GPU output and that the monitor input matches that physical connection.
Leave the monitor-side option enabled before opening the graphics driver panel. The driver cannot reliably expose a feature that the display has disabled at its own menu level.
How to enable G-SYNC on an NVIDIA system
The labels below follow NVIDIA’s documented Control Panel flow. NVIDIA’s page carries a 2023 copyright footer, so small wording or layout changes are possible in newer driver releases.
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- Select Display and then Set up G-SYNC.
- Check Enable G-SYNC/G-SYNC Compatible.
- Choose whether it should apply to Full screen mode or Windowed and full screen mode. Use windowed-and-full-screen mode only if you need VRR in games that use a borderless or windowed presentation.
- Select the display you intend to use if more than one monitor is connected.
- Make sure that display is connected, enabled in the operating system, and configured as the primary display when the application requires it.
- Apply the change.
- Open Manage 3D settings and check Monitor Technology. Set it to G-SYNC/G-SYNC Compatible for the relevant display or profile when that option is available.
NVIDIA lists different supported graphics-card generations and system requirements for G-SYNC displays and G-SYNC Compatible displays. Verify the current hardware and operating-system requirements for your particular card and monitor instead of treating one generation’s requirements as universal.
If “Set up G-SYNC” is missing
- Confirm that the monitor’s own Adaptive-Sync or VRR option is enabled.
- Check that the monitor is connected to the graphics card output and is powered on.
- In the Control Panel, select the correct display and make it the primary display if required.
- Open Manage 3D settings and verify that Monitor Technology is not still set to a different mode.
- Check the monitor manual for input-specific restrictions; a model may support VRR on one input but not another.
- If you try the setting on an unvalidated VRR display, regard the result as an experiment rather than proof of NVIDIA certification.
How to enable FreeSync on an AMD system
AMD’s current support instructions use AMD Software: Adrenalin Edition. The article describing the steps was updated March 3, 2025 and identifies screenshots based on Adrenalin Edition 23.9.1 Full Install, so current labels may be slightly different.
- Open the monitor OSD and enable FreeSync, Adaptive-Sync, or the equivalent setting.
- Open AMD Software: Adrenalin Edition.
- Open Display settings.
- Select the active gaming display if several displays are listed.
- Find the FreeSync status and tier under the display information. Confirm that FreeSync is enabled rather than disabled.
- Apply any change and close the panel.
AMD says compatible Radeon graphics and certified-display systems can enable FreeSync automatically. The Display screen remains the place to verify the status or disable it. AMD also documents game-specific profiles, which allow a title to use settings different from the global display configuration.
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If FreeSync is shown as unavailable
- Recheck the monitor OSD; a display preset or custom picture setting may have disabled FreeSync.
- Select the correct monitor in the Display page.
- Check the HDMI or DisplayPort connection against both manuals. AMD documents both connection types for certified displays, but not every input on every monitor supports VRR.
- Confirm that the Radeon driver recognizes the intended display and that the operating system is using the desired refresh rate.
- Use the manufacturer’s recommended display settings if a custom mode hides the feature.
Verify that VRR is operating, then tune frame rates
After enabling the feature, return to the relevant NVIDIA or AMD display page and confirm its status for the gaming monitor. Then test a game in the mode you selected: exclusive fullscreen, borderless, or windowed. A setting that works in fullscreen may not apply to every windowed mode, particularly when the driver is configured for fullscreen only.
Compare the game’s frame-rate behavior with the monitor’s stated VRR range. If the game regularly renders above the monitor’s maximum refresh rate, AMD suggests enabling V-Sync or applying a frame-rate cap for a tear-free result. This is an optional tuning choice, not a prerequisite for turning on VRR. Use the cap or synchronization method that fits your input-latency and consistency preferences.
Why the stated range matters
A monitor can support VRR only between its specified minimum and maximum refresh rates. For example, a display advertised with a 60–144 Hz range may not continuously vary below 60 Hz without an additional technique. The maximum refresh rate is also a ceiling: frames above it can still create a need for frame-rate management.
Low-framerate compensation
Low-framerate compensation (LFC) helps when rendering falls below the lower end of a display’s stated range by presenting a frame more than once at a higher refresh cadence. AMD’s example uses a 60–144 Hz display: a game producing 40 frames per second can have each frame repeated so the display operates at 80 Hz, which is inside the display’s supported range.
What FreeSync Premium tiers add
AMD’s tier definitions provide additional requirements beyond basic FreeSync. Treat these as AMD’s stated tier specifications, not as a universal definition for every manufacturer’s VRR label.
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|---|---|---|
| FreeSync | Basic AMD FreeSync capability on a compatible display. | Check the exact VRR range, inputs, resolution, and certification for the model. |
| FreeSync Premium | At least 120 Hz at minimum Full HD resolution and low-framerate compensation. AMD’s support description was updated March 3, 2025. | Useful for high-refresh gaming and for maintaining synchronized timing when frame rate drops below the ordinary minimum. |
| FreeSync Premium Pro | Premium requirements plus HDR support and additional color and luminance certification. | Check the display’s HDR implementation and the game’s HDR support; the tier is not a promise that every title will look identical. |
The tier does not replace checking the individual model’s maximum refresh rate, minimum range, resolution, input support, or driver compatibility.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting by symptom
The monitor has a VRR specification, but the driver option is absent
Start at the monitor: enable its OSD option, exit any preset that disables it, and select the correct input. Then verify the physical cable and GPU output. Finally, select the correct display in the driver panel and restart the driver or system after installing a new driver. A general VRR specification cannot establish that every port or operating mode is supported.
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The feature works on one input but not another
Check the manual for input-specific VRR support and bandwidth limits. Move the cable only after confirming that the destination port on both the monitor and GPU supports the required mode. Do not assume that an HDMI port and a DisplayPort port on the same monitor have identical capabilities.
VRR turns off after changing a picture preset
Some monitor presets or custom display settings can disable FreeSync or Adaptive-Sync. Re-enable the synchronization option after selecting the manufacturer-recommended gaming or display mode, then check the driver status again.
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VRR works in fullscreen but not in a window
On NVIDIA systems, return to Set up G-SYNC and select Windowed and full screen mode if the game uses a borderless or windowed presentation. Confirm that the game is using the same display selected in the driver. Some applications still handle presentation modes differently, so test the actual mode used by the title.
The image still tears when frame rate is very high
Compare the game’s frame rate with the monitor’s maximum refresh rate. If output regularly exceeds that ceiling, use an optional frame cap or V-Sync setting as AMD recommends for a tear-free result. Keep the cap and synchronization choice consistent with your acceptable input latency.
The image stutters when frame rate falls sharply
Check whether the frame rate has fallen below the monitor’s minimum VRR range and whether the display supports LFC. FreeSync Premium includes LFC under AMD’s tier definition; a basic VRR display may not provide the same behavior. Reducing demanding game settings can also keep rendering inside the display’s supported range, but adaptive sync itself does not increase the GPU’s frame rate.
How to choose a monitor when your current one lacks VRR
If the existing display has no adaptive-sync capability, the relevant replacement category is an adaptive-sync or FreeSync gaming monitor. Do not choose from the label alone. Compare the complete operating path.
| Comparison point | Questions to answer |
|---|---|
| GPU and operating system | Does the monitor’s technology work with the graphics card, driver, and operating system you use? |
| Validation or certification | Is the exact model validated as G-SYNC Compatible, certified for FreeSync, covered by VESA AdaptiveSync, or simply advertised as VRR? |
| Connection | Which HDMI or DisplayPort input supports VRR, and which output and cable does your GPU require? |
| Refresh range | What are the stated minimum and maximum refresh rates at your intended resolution? |
| LFC and HDR | Does the model include LFC, and does its tier include HDR requirements that match your games and HDR workflow? |
| Presentation mode | Will you play in exclusive fullscreen, borderless fullscreen, or windowed mode, and does the driver support that mode? |
A replacement cable is a conditional purchase, not an automatic requirement. Buy or change one only when the current cable or port does not meet the monitor and GPU documentation for the desired resolution, refresh rate, and VRR mode.
Quick Recap
A short setup checklist
- Monitor specifications and OSD confirm Adaptive-Sync, FreeSync, VRR, or G-SYNC support.
- The monitor is connected to a supported GPU output and input.
- The display is set to the intended refresh rate.
- The graphics driver is installed and recognizes the correct monitor.
- The monitor-side synchronization option is enabled first.
- NVIDIA users verify Set up G-SYNC and Monitor Technology; AMD users verify FreeSync under Display in Adrenalin.
- The game’s fullscreen or windowed mode matches the driver configuration.
- The game’s frame rate is considered against the display’s minimum and maximum VRR range.
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