What is V-Sync: The Pioneer in Dynamic Frame Rates Stabilization

| Last Updated: December 6, 2021

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Have you ever wondered what V-Sync is? If so, you're not alone. Video games and computer-aided design (CAD) software have been using this feature for years, and it's time to take a closer look at what it can do for gamers and professionals alike.

This blog post will tackle all you need to know about V-Sync, including its importance and application. We will also discuss how it has helped shape the refined frame rates, incredible resolutions, and lifelike images and scenes that we enjoy today. So, read on to learn more!

What is V-Sync?

Vertical Synchronization (V-Sync) is a feature that synchronizes the display screen refresh rate with the gaming or professional software frame rate. V-Sync prevents video output issues in the past, such as stuttering and tearing. With this technology, modern GPUs can run at greater frame rates with ease. 

Brief Background

Video production and computer graphics in the past can be tricky, but one thing that's often overlooked is how vertical synchronization is maintained. For instance, If new images are being transmitted while an old one is still showing, there will be tearing in the midst of a frame.

The visual problems that occur on-screen alongside stuttering and sometimes input lags are the primary reasons why the V-Sync solution was invented. In summary, the V-Sync keeps the frame rates and monitor refresh rates in sync for smoother transitions and better presentation.

Screen tearing example

Is V-Sync worth it?

V-Sync’s primary function is to remove screen tearing by working in sync with the screen display, which provides the right timing for presenting the succeeding frames. Since V-Sync matches the GPU and monitor frame rates, it also lowers power consumption, noise, and heat.

On the other hand, as the frames per second (fps) are limited, so does the overall performance of the video card, significantly when frame rates drop below the monitor’s refresh rate. Additionally, the input lag or mouse lag is expected to occur due to the sudden decrease of fps. 

V-Sync Limitations

Similar to all the software applications, tools, and features that make the user experience better, there are essential advantages and a few caveats to take note of as well. 

One drawback is that V-Sync is only applicable for gaming and professional programs that run in fullscreen mode exclusively. As an example, the borderless fullscreen windows are not included. 

Another limitation is that V-Sync should not be applied during benchmark tests because frame rates increase would peak and stop when the fps attains the monitor’s refresh rate, hindering the GPU from reaching its maximum capacity in terms of frame rate performance.

V-Sync Application 

V-Sync is commonly utilized for modern video game titles and professional computer-aided design software. Both of which are greatly benefited by the full-screen frame rates that are perfectly timed by the GPU and monitor to prevent on-screen tears and stutters.

However, V-Sync also causes latency or input lags, which are usually observed and described by users as mouse lags. This caveat happens due to the frame display update that only proceeds upon the complete transmission of an image or scene. 

For latency problems as mentioned, NVIDIA’s Fast Sync triple buffering technique offers a highly effective solution for the said delayed image processing trouble.

NVIDIA Adaptive V-Sync 

No one likes watching videos that have frame rate stuttering and screen tearing. If you are looking to enjoy a smooth and uninterrupted gaming experience, the state-of-the-art Adaptive V-Sync is NVIDIA’s answer to your screen display troubles.

NVIDIA Adaptive V-Sync offers dynamic frame rates stabilization, which means that this feature only activates when it is needed. At increasing frame rates, V-Sync is enabled to limit the fps in order to avoid tearing. During frame rate drops, V-Sync is disabled to control stuttering.

NVIDIA Adaptive V-Sync logo

Adaptive V-Sync Compatible Devices 

Adaptive V-Sync-enabled devices are just what you need to keep your gaming running smoothly. Never worry about choppy gameplay or sudden changes in the picture again. Make sure that your computer can handle this awesome new upgrade in this section.

If you're aiming to check out this technology’s performance, then read on. We've collected here the list of Adaptive V-Sync supported devices:

NVIDIA GeForce GTX 900 Series

  • GTX 980 Ti
  • GTX 980
  • GTX 970
  • GTX 965M
  • GTX 960M
  • GTX 960
  • GTX 950M
  • GTX 950

NVIDIA GeForce GTX 800M Series

  • GTX 880M
  • GTX 870M
  • GTX 860M
  • GTX 850M

NVIDIA GeForce GTX 700 Series

  • GTX 780 Ti
  • GTX 780
  • GTX 770
  • GTX 760
  • GTX 750 Ti
  • GTX 750
  • GT 740
  • GT 730
  • GT 720
  • GT 710
  • GTX TITAN Black

NVIDIA GeForce GTX 600 Series

  • GTX 690
  • GTX 680M
  • GTX 680
  • GTX 670
  • GTX 660 Ti
  • GTX 660
  • GTX 650 Ti BOOST
  • GTX 650 Ti
  • GTX 650

NVIDIA Fast Sync

While Adaptive V-Sync resolves screen tearing and stuttering at the same time, it has a minor drawback. Gamers and professionals report that an increase in input lag or mouse lag occurrences is observed, so NVIDIA has come up with Fast Sync to rectify that problem.   

Temporary image data storage such as front and back buffer are used in Adaptive V-Sync to deliver the required fps on-screen. However, in applying this method, fast-paced programs experience bottlenecks. To solve this, a step called the last rendered buffer is included. 

In NVIDIA Fast Sync, the last rendered buffer is added as an additional storage step for fps processing that fixes the latency encountered by playing or running fast-twitch games and software. Simply put, Fast Sync settles three display issues: stuttering, tearing, and lagging.      

V-Sync vs. Fast Sync

Let’s Compare: Double Buffering vs. Triple Buffering

Double buffering presents video outputs of frame rates sequentially, wherein the latest rendered frame has to be displayed first before the next frame is processed. This buffering method is best for achieving frame rate consistency. 

On the other hand, triple buffering which is also known as the older method of DirectX, overwrites the earliest renders and skips frames that are not processed in time for its display. The rendering occurs in the background simultaneously troubleshooting the latency problems.

Fast Sync is NVIDIA’s closest application to the triple buffering system.   

Fast Sync Enabled GPUs

Stay ahead of the game with the most recent line of Fast Sync Enabled graphics cards. These Fast Sync compatible video cards listed below are designed to handle any tasks you throw at them with ease and accuracy.

Note that the Fast Sync option does not work together with SLI and 3D Stereo. If you want to switch on the Fast Sync mode, both the SLI and 3D Stereo must be disabled. 

NVIDIA Pascal and Turing GPUs

NVIDIA Turing GeForce 20 Series

  • RTX 2060
  • RTX 2060 TU104
  • RTX 2060 Super
  • RTX 2070
  • RTX 2070 Super
  • RTX 2080
  • RTX 2080 Super
  • RTX 2080 Ti

NVIDIA Pascal GeForce 10 Series

  • GT 1010
  • GT 1030 (DDR4)
  • GT 1030
  • GTX 1050 2GB
  • GTX 1050 3GB
  • GTX 1050 Ti
  • GTX 1060 3GB
  • GTX 1060 5GB
  • GTX 1060 6GB
  • GTX 1060 6GB (GDDR5X)
  • GTX 1070
  • GTX 1070 Ti
  • GTX 1080
  • GTX 1080 Ti

NVIDIA Maxwell GeForce 900 Series

  • GTX 950
  • GTX 960
  • GTX 970
  • GTX 980
  • GTX 980 Ti


NVIDIA G-Sync is the leading-edge display innovation that eliminates screen stutters, tearing, and input lag. Removing both the display input lag and tearing simultaneously is what makes this feature exceptional from the rest of its V-Sync predecessors.

The unique component attribute enables excellent visuals with photorealistic images and scenes for the complete immersive experience only NVIDIA’s G-Sync can offer. As a result, video playbacks become smoother, sharper, and more accurate than ever before.

NVIDIA G-Sync logo

G-Sync Supported Devices

G-Sync-enabled devices are the clear choice if you're after buttery smooth framerates. Upgrade from your current computer display build to a G-Sync capable monitor and video cards, and experience a whole new level of gaming on one of these high-quality cards today!

If you are interested in trying the G-Sync On feature on GPUs and display monitors, take note of these compatible devices:


  • GTX 650 Ti BOOST graphics card models and higher

Acer Monitors

  • Acer X25 (24.5″ FHD, 360Hz IPS)
  • Acer X28 (28″ UHD, 155Hz IPS)
  • Acer X34 (34″ 3440×1440, 100Hz IPS)
  • Acer X34 P (34″ 3440×1440, 120Hz IPS)
  • Acer X34 S (34″ 3440×1440, 200Hz IPS)
  • Acer X38 P (37.5″ 3840×1600, 175Hz IPS)
  • Acer XB240HA (24″ FHD, 144Hz TN)
  • Acer XB241H (24″ FHD, 144Hz TN)
  • Acer XB241YU (23.8″ WQHD, 144Hz TN)
  • Acer XB251HQT (24.5″ FHD, 240Hz TN)
  • Acer XB252Q (24.5″ FHD, 240Hz TN)
  • Acer XB270HA (27″ FHD, 144Hz TN)
  • Acer XB270HU (27″ WQHD, 144Hz IPS)
  • Acer XB271HK (27″ UHD, 60Hz IPS)
  • Acer XB271HU (27″ WQHD, 144Hz IPS)
  • Acer XB271HUA (27″ WQHD, 144Hz TN)
  • Acer XB271HUT (27″ WQHD, 144Hz IPS)
  • Acer XB272 (27″ FHD, 240Hz TN)
  • Acer XB273K(P) (27″ UHD, 144Hz IPS)
  • Acer XB273U NX (27″ WQHD, 275Hz IPS)
  • Acer XB273 X (27″ FHD, 240Hz IPS)
  • Acer XB280HK (28″ UHD, 60Hz TN)
  • Acer XB281HK (28″ UHD, 60Hz TN)
  • Acer XB321HK (32″ UHD, 60Hz IPS)
  • Acer XN253QP (24.5″ FHD, 144Hz TN)
  • Acer XN253QX (24.5″ FHD, 240Hz TN)
  • Acer Z271 (27″ FHD, 144Hz VA)
  • Acer Z271T (27″ FHD, 144Hz VA)
  • Acer Z271UV (27″ WQHD, 165Hz VA)
  • Acer Z301CT (30″ 2560×1080, 200Hz VA)
  • Acer Z321QU (31.5″ WQHD, 165Hz VA)
  • Acer Z35 (35″ 2560×1080, 200Hz VA)
  • Acer Z35P (35″ 3440×1440, 120Hz VA)

AOC Monitors

  • AOC g2460Pg (24″ FHD, 144Hz TN)
  • AOC AG241QG (23.8″ WQHD, 165Hz TN)
  • AOC AG251FG (24.5″ FHD, 240Hz TN)
  • AOC AG254FG (24.5″ FHD, 360Hz IPS)
  • AOC AG271QG (27″ WQHD, 165Hz IPS)
  • AOC AG273QCG (27″ WQHD, 165Hz TN)
  • AOC AG322QCG (31.5″ WQHD, 165Hz VA)
  • AOC AG352UCG (35″ 3440×1440, 100Hz VA)

ASUS Monitors

  • ASUS PG248Q (24″ FHD, 180Hz TN)
  • ASUS PG258Q (24.5″ FHD, 240Hz TN)
  • ASUS PG259QN (24.5″ FHD, 360Hz IPS)
  • ASUS PG278Q(R) (27″ WQHD, 144Hz TN)
  • ASUS PG279Q (27″ WQHD, 165Hz IPS)
  • ASUS PG279QE (27″ WQHD, 165Hz IPS)
  • ASUS PG279QM (27″ WQHD, 240Hz IPS)
  • ASUS PG279QR (27″ WQHD, 165Hz IPS)
  • ASUS PG279QZ (27″ WQHD, 165Hz IPS)
  • ASUS PG27AQ (27″ UHD, 60Hz IPS)
  • ASUS PG27VQ (27″ WQHD, 165Hz TN)
  • ASUS PG348Q (34″ 3440×1440, 100Hz IPS)
  • ASUS PG349Q (34″ 3440×1440, 100Hz IPS)
  • ASUS VG248QE G-SYNC (24″ FHD, 144Hz)

BenQ Monitor

  • BenQ XL2420G (24″ FHD, 144Hz TN)

Dell Alienware Monitors

  • Dell Alienware AW2518H (24.5″ FHD, 240Hz TN)
  • Dell Alienware AW2521H (24.5″ FHD, 360Hz IPS)
  • Dell Alienware AW3418DW (34″ 3440×1440, 120Hz IPS)
  • Dell Alienware AW3418HW (34″ 2560×1080, 160Hz IPS)
  • Dell Alienware AW3420DW (34″ 3440×1440, 120Hz IPS)
  • Dell S2417DG (23.8″ WQHD, 165Hz TN)
  • Dell S2716DG (27″ WQHD, 144Hz TN)

HP OMEN Monitors

  • HP OMEN 27 (27″ WQHD, 165Hz TN)
  • HP OMEN X 35 (35″ 3440×1440, 100Hz VA)

Lenovo Monitors

  • Lenovo Y25g-30 (24.5″ FHD, 360Hz IPS)
  • Lenovo Y27g (27″ FHD, 144Hz VA)

LG Monitors

  • LG 32GK650G (31.5″ WQHD, 165Hz VA)
  • LG 32GK850G (31.5″ WQHD, 165Hz VA)
  • LG 34GK950G (34″ 3440×1440, 120Hz IPS)
  • LG 34UC89G (34″ 2560×1080, 166Hz IPS)
  • LG 38GL950G (37.5″ 3840×1600, 175Hz IPS)

MSI Monitors

  • MSI NXG251R (24.5″ FHD, 240Hz TN)
  • MSI NXG252R (24.5″ FHD, 240Hz TN)
  • MSI NXG253R (24.5″ FHD, 360Hz IPS)

Philips Monitors

  • Philips 272G5DYEB (27″ FHD, 144Hz TN)

ViewSonic Monitors

  • ViewSonic XG251G (24.5″ FHD, 360Hz IPS)
  • ViewSonic XG2560 (24.5″ FHD, 240Hz TN)
  • ViewSonic XG270QG (27″ WQHD, 165Hz IPS)
  • ViewSonic XG2703-GS (27″ WQHD, 165Hz IPS)
  • ViewSonic XG271QG (27″ WQHD, 240Hz IPS)
  • ViewSonic XG2760 (27″ WQHD, 165Hz TN)

NVIDIA G-Sync Ultimate

In January 2021, NVIDIA has launched G-Sync Ultimate that boasts lifelike high dynamic range (HDR) OLED capability that utilizes up to 600 to 700 nits of computer display brightness. 

With the outstanding 1,152 backlight zones, the HDR graphics are greatly improved. For smooth gameplay, NVIDIA also introduced an ultra-low motion blur mode for supported displays.

The best attribute of this tool is the refresh rate overclocking. Because the module has its own processor, the display monitor’s refresh rates can run at par with the video card’s frame rates.

NVIDIA G-Sync Ultimate logo

G-Sync Ultimate Capable Devices

The G-Sync Ultimate feature will allow you to max out all the visual settings of your games and work in perfect harmony with the latest high-definition displays. To serve as a guide, we have garnered the devices that can work with this amazing software tool.

Here is the list of G-Sync Ultimate supported video cards and HDR display monitors:

NVIDIA G-Sync Ultimate compatible monitors


  • GTX 1050 graphics card models and higher

Acer Monitors

  • Acer CG437KP (65″ ‘BFGD’ UHD, 120Hz)
  • Acer CP7271K (27″ UHD, 144Hz IPS)
  • Acer X27 (27″ UHD, 144Hz IPS)
  • Acer X32 (32″ UHD, 144Hz IPS)
  • Acer X35 (35″ 3440×1440, 200Hz VA)
  • Acer X38 S (37.5″ 3840×1600, 175Hz IPS)

AOC Monitors

  • AOC AG274QG (27″ WQHD, 240Hz IPS)
  • AOC AG353UCG (35″, 3440×1440, 200Hz VA)

ASUS Monitors

  • ASUS PG27UQ (27″ UHD, 144Hz IPS)
  • ASUS PG32UQX (32″ UHD, 144Hz IPS)
  • ASUS PG35VQ (35″ 3440×1440, 200Hz VA)
  • ASUS PG65 (65″ ‘BFGD’ UHD, 120Hz)

Dell Alienware Monitors

  • Dell Alienware AW2721D (27″ WQHD, 240Hz IPS)
  • Dell Alienware AW3821DW (37.5″ 3840×1600, 144Hz IPS)

HP OMEN Monitors

  • HP OMEN X Emperium 65 (65″ ‘BFGD’ UHD, 120Hz)

LG Monitors

  • LG 34GP950G (34″ 3440×1440, 180Hz IPS)

MSI Monitors

  • MSI MEG381CQR Plus (37.5″ 3840×1600, 175Hz IPS)

ViewSonic Monitors

  • ViewSonic XG321UG (32″ UHD, 150Hz IPS)

People Also Ask

Here, we’ll delve into some frequently asked questions about this new technology and outline its benefits & drawbacks before enabling V-Sync on their compatible devices.

Is it better to have V-Sync on or off?

The decision of whether to switch the V-Sync on or off depends on the purpose of the user.  

V-Sync can be a great tool to avoid screen tearing and stuttering. It also significantly limits the power consumption, heat, and sound. 

However, if the program you are running doesn’t have any display issues, it is best to keep the V-sync off as it could worsen the frame rates and cause severe lags.

What does V-Sync actually do?

V-Sync is short for vertical synchronization. It is a software mechanism that keeps the graphics card frame rate in sync with the display monitor refresh rate, which results in uninterrupted and smoother video playbacks and rendering of graphics-intensive 3D games.

NVIDIA Adaptive V-Sync is the first of its kind in providing dynamic frame rates stabilization, which means that this tool is only implemented whenever required. 

At elevated frame rates, V-Sync lowers the fps to prevent screen tearing. When the frame rates fall, V-Sync is switched off to limit the possibility of display stuttering.

Does V-Sync lower fps?

Yes, it lowers fps at some point. 

If the video card’s fps is greater than your monitor’s refresh rate, V-Sync has to control the frame rates in order to keep it synchronized, avoiding screen tearing in the process. 

While it is beneficial for hindering video output troubles, the performance might also be weakened along with this on-screen improvement mechanism.

Is V-Sync bad for GPU?

No, V-Sync will not in any way affect the graphics card negatively. 

Although activating the V-Sync fixes on-screen display problems such as stuttering and tearing, forcing the frame rates to drop may dramatically decrease a GPU’s performance.

It won’t ruin your video card, but you may not like the quality of the display upon switching the V-Sync on, so it really depends on your intended use and purpose. 

Does V-Sync use CPU or GPU?

The V-Sync mechanism utilizes the graphics card; that’s why the component must also have the capacity to handle this feature.

V-Sync is an application tool that controls the ultra-sensitive GPU clock, deciding and indicating when is the right time to shoot the subsequent frames to be presented on a computer monitor or screen. 

Does V-Sync cause performance issues?

Yes, V-Sync causes low performance, but it only happens when V-Sync is turned on. 

As mentioned in the previous answers to the questions, it depends on optimizing this application tool. 

While V-Sync has a lot of improvements to offer in terms of display quality. It is reported to temporarily weaken the overall performance as the V-Sync tool is mainly used to limit and smoothen the frame rates produced by the graphics card and the computer monitor.

Is V-Sync suitable for low-end PC?

It depends on the gaming or professional software you are working with.

For instance, if a program operates at a higher fps than a low-end monitor’s refresh rate, then V-Sync is the perfect solution to use both of these components together. 

If you look at its opposite situation wherein the software runs at a lower fps compared to a low-end monitor’s refresh rate, then the V-Sync system may not be required for use.


If you're experiencing screen tearing or stuttering in some games, V-Sync is the solution you’re looking for. Most people are unfamiliar with this feature, but it's been around for years and is an essential solution to these issues that can arise when playing any game on a PC.

As NVIDIA continues to innovate their technology, they offer G-Sync Ultimate as the latest upgrade of V-Sync which provides gamers with a smoother gameplay experience without compromising refresh rates at resolutions up to 4K in HDR.

To find out more about NVIDIA RTX 30 series, visit our best GPU reviews!


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