Tearing occurs when your monitor won’t refresh as quickly as the game’s frame rate. For players who deal with this issue regularly, it can quickly ruin the gameplay experience.
There is a way to sync your refresh rate to your GPU rendering, but you’ll need to use FreeSync to do it. This program might be completely unknown to some, but using FreeSync shouldn’t be too complicated. Here’s how to do it.
What is AMD FreeSync?
Notice the misaligned elements of the left-hand frame? Although this screen tearing is simulated, it displays the effect screen tearing can have on a game. AMD
FreeSync allows AMD’s graphics cards and APUs to control the refresh rate of a connected monitor. Most monitors default to 60 refreshes per second (60Hz), but you’ll also see monitors that refresh 75, 120, 144 or even 240 times per second.
Overall, timing is essentially the big screen-tearing issue. The GPU may render frames faster than the display can update the screen, causing the latter to compile “strips” of different frames. The “ripping” artifacts typically surface when the view moves horizontally. Likewise, if the GPU can’t output at the display’s refresh rate, you’ll experience a “stuttering” effect.
With FreeSync enabled, the monitor dynamically refreshes the screen in sync with the current game’s frame rate. If it’s a 60Hz display then it only supports 60 frames per second. If the GPU’s output drops, the display’s refresh rate drops accordingly.
If you’re playing a relatively simple PC game like the original Half-Life, you probably don’t even need FreeSync. High refresh rates go a long way in eliminating screen tearing, so adaptive sync technologies are largely unneeded if your GPU consistently outputs high frame rates.
But if you’re playing a newer, graphically intensive game like Assassin’s Creed: Odyssey at 4K, even a powerful gaming desktop might only render 40 or 50 frames per second on average, falling below the monitor’s refresh rate. With AMD FreeSync, the monitor’s refresh rate scales up or down to match the frame rate, so the monitor never refreshes in the middle of a frame and tearing never materializes.
What do you need to use FreeSync?
Asus’ MG279Q, our favorite FreeSync gaming display.
For FreeSync to work, you need a compatible AMD graphics card or an integrated APU, like AMD’s recent Ryzen-branded all-in-one chips. Most modern Radeon cards — from budget offerings up to the super-powerful Radeon VII — support FreeSync. If you’re unsure, check the specifications.
You also need a compatible monitor or TV that supports VESA’s Adaptive-Sync. AMD began supporting this technology as FreeSync via its software suite in 2015. It essentially builds a two-way communication between the Radeon GPU and off-the-shelf scaler boards installed in certified Adaptive-Sync displays. These boards do all the processing, rendering, backlight control, and more.
The DisplayPort 1.2a spec added support for variable refresh rates in 2014 followed by HDMI 2.1 in 2017.
But manufacturers don’t simply slap on AMD’s “FreeSync” branding and move on. According to AMD, these panels endure a “rigorous certification process to ensure a tear-free, low latency experience.” Nvidia does the same thing with its G-Sync certification program.
Typically FreeSync monitors are cheaper than their G-Sync counterparts. That’s because G-Sync monitors rely on a proprietary module, ditching the off-the-shelf scaler. This module controls everything from the refresh rate to the backlighting. However, Nvidia is currently building a list of FreeSync-class monitors that are now compatible with its G-Sync technology on the PC side.
Despite their lower price, FreeSync monitors provide a broad spectrum of other features to enhance your games, like 4K resolutions, high refresh rates, and HDR. Our favorite gaming displays have many of these technologies, though not all of them are FreeSync compatible. AMD has a list of FreeSync monitors on its FreeSync site.
How to enable FreeSync
After connecting your computer to a FreeSync-enabled monitor, make sure to download the latest AMD Catalyst drivers from the company’s website. You can manually select your card or APU model with the “Manually Select Your Driver” tool — just make sure to match your version of Windows. You can also use the auto-detection tool if you’re not sure.
Remember, you don’t need a second driver to enable FreeSync, If you have compatible hardware, it’s included in this download. Install the driver and restart your computer if necessary.
When you’re ready, open the AMD Radeon Settings by right-clicking on your desktop and selecting it from the pop-up menu. Next, select “Display” from the top menu and toggle on the “Radeon FreeSync” setting. Depending on your display, you may also need to turn it on in your monitor settings.
Note: Some FreeSync displays only work within a pre-defined frame rate range, so depending on the game you may need to limit your frame rate to stay within that threshold.
What is FreeSync Premium?
It’s important to use monitors that support LFC, which stands for low framerate compensation. LFC steps in when your graphics processor can’t maintain the same frame rate as your monitor, working to keep them in sync. FreeSync doesn’t offer any other enhancements in their Premium version, and all your other favorite features are still there.
What about FreeSync 2 HDR?
AMD rebranded FreeSync level as FreeSynch Premium Pro and added support for adding HDR content and games capable of HDR-based visuals during CES 2020.
Premium Pro panels support low latency for SDR and HDR and can pass luminance accurately and successfully. It also comes with wide-color gamut testing. The panels must test to 400 nits of brightness for HDR 400 certification.
FreeSync Premium Pro and its features are something that many in the future will continue to use. HDR will be necessary as it is a feature on all of these monitors.