What is FreeSync? – How to use AMD’s tech with an Nvidia GPU

AMD FreeSync is an adaptive synchronization tool that prevents stuttering and screen tearing on your gaming PC. Best of all? It's compatible with Nvidia GPUs

AMD FReeSync: Alienware monitor with AMD logo on screen and game tiles in backdrop

AMD FreeSync is a hardware solution to the horrors of screen tearing, and the tech comes baked into some of the best gaming monitors. Software solutions like Vsync can help prevent games from becoming a jittery mess, but FreeSync compatible screens can smooth out stuttering and boost fps without a hitch. Sure, if you’re rocking one of the green team’s best graphics cards, you’ll probably be more likely to jump onto the Nvidia G-Sync bandwagon. However, both companies are starting to cooperate in terms of compatibility, making it easier than ever to mix and match.

It used to be the case where buying an AMD FreeSync or Nvidia G-Sync monitor locked you into a specific ecosystem, making it incredibly difficult to switch between the two GPU vendors without giving up the benefits – but not anymore! Fortunately, Nvidia is slowly but surely opening up its G-Sync technology, meaning you can pair a FreeSync monitor with an Nvidia graphics card and vice versa.

GPU politics and compatibility aside, you might still be asking the question “what is FreeSync?” Well, fear not, as we’re about to walk you through the ins and outs of screen tearing, G-Sync compatibility, and a breakdown of AMD’s FreeSync Premium and Premium Pro tiers.

The main question on most people’s mind is whether you can use an AMD graphics card with a G-Sync monitor or an Nvidia graphics card with a FreeSync monitor. The answer is that any graphics card will work with pretty much any display and an image will present itself like it would on any other screen, but if you want to use the variable refresh rate provided by G-Sync or FreeSync on a display to prevent screen tearing, that answer is a little more complicated.

AMD FreeSync: Two monitors on blue and purple backdrop

WHAT IS FREESYNC?

FreeSync, G-Sync, and Vsync (otherwise known as vertical sync) combat screen tearing by synchronising the frame rate with the refresh rate of your monitor.

Vsync was the first of the bunch, taking a software-based approach to synchronisation. This allows it to have the widest support as pretty much anyone can use Vsync by heading into a game’s menu and switching it on, but it certainly comes with its own issues. If your frame rate dips below your monitor’s refresh rate with Vsync on, the feature doesn’t adjust, causing screen stuttering instead.

FreeSync and G-Sync both use adaptive synchronisation technology built into the monitor itself, using this streamlined communication with the graphics card to scale to whatever frame rate your system is pumping at any given time. Although G-Sync is proprietary and has been mostly locked to Nvidia graphics cards since its 2013 introduction, FreeSync has always been royalty-free, hence the name.

AMD FreeSync: Three monitors displaying text for FreeSync Premium and FreeSync Premium Pro

What is FreeSync Premium?

AMD’s FreeSync comes in three tiers, with FreeSync Premium and FreeSync Premium Pro building on the tech’s existing abilities. On top of preventing screen tearing and facilitating low latency, the premium tier features low framerate compensation (LFC) abilities that kick in when frame rates drop below your monitor’s refresh rate. This version of FreeSync also maintains 120hz at 1080p, ultimately leading to a smoother experience.

AMD FreeSync Premium Pro works similarly to its premium counterpart but comes with additional HDR capabilities.  Previously known as FreeSync 2 HDR, the tier enables LFC, 120Hz, and low latency gameplay while enjoying the benefits of high dynamic range.

No screen tearing

Screen tearing
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What is screen tearing?

We all hope to have a smooth experience when playing a game, which is why many of us try to boost fps as high as it’ll go. When your frame rate exceeds your monitor’s refresh rate, however, you might see the game become disjointed, with frames sticking on the previous image in some segments. This is what’s called screen tearing.

Can AMD Radeon graphics cards use G-Sync?

It’s been a long time coming – six years to be exact – but Nvidia finally announced in 2019 that it will support open standards, allowing AMD Radeon graphics cards to use G-Sync moving forward. Hurray! Except, there’s one big caveat… Support for the necessary HDMI-VRR and Adaptive Sync over DisplayPort will only be granted to new G-Sync modules, and the majority of older G-Sync monitors that are already on the market won’t reap the benefits for AMD users.

The good news is that PlayStation 5 and Xbox Series X owners will eventually have an easier time getting their hands on a monitor of their choosing, and AMD users on PC could potentially consider high-end G-Sync Ultimate screens that are capable of chonky refresh rates and resolutions, HDR1000, and superb colour. The bad news is that Nvidia still hasn’t made it easy to spot which monitors support the open standard and which don’t, making it a chore to shop for.

What is the G-Sync Compatible initiative?

The G-Sync Compatible initiative, or ‘Nvidia FreeSync’ as we like to call it, was first announced at CES in 2019, initially launching alongside the RTX 2060 and its associated driver update. Now, any 10 series Nvidia graphics card and above that’s capable of supporting G-Sync as standard can benefit from FreeSync panels, enabling the feature in the monitor’s settings.

Nvidia has been adding to its growing list of certified monitors, where displays are only granted the ‘G-Sync Compatible’ badge of honour if it meets the green team’s high expectations.

If your screen doesn’t appear on the list, don’t lose hope, though. The company has stated that “it may work, it may work partly, or it may not work at all,” which might not fill you with confidence, but we’ve got it working on a few non-validated FreeSync monitors in the office and it looks fantastic. At worst, you might experience screen flickering or blur with the G-Sync Compatible setting enabled, but it’s as easy as digging through the control panel to quickly set things up and try for yourself.

How to enable G-Sync compatibility on a FreeSync monitor

The first thing you need to do is make sure you’re connecting via DisplayPort (or HDMI 2.1 if you’re on a GTX 16 series/RTX 20/30 series card), as older HDMI standards do not support variable refresh rate with this feature. You also need to be running a recent version of Windows 10. It might also be worth running Display Driver Uninstaller first to ensure a completely clean install of the new Nvidia driver.

Once you’re connected properly, and you have the latest driver installed, you may need to enable FreeSync within your monitor’s own settings. It will likely be inside the image section of the on-screen display. Now, if the Nvidia logo is missing from the bar next to the Windows clock, click on the up arrow to show hidden icons and right click on the Nvidia eye. Select ‘Nvidia Control Panel’ and hit ‘Change Resolution.’

Select refresh rate

Select the FreeSync monitor (it will likely be the one with the Nvidia logo on it) and adjust the refresh to the highest available. On our Asus ROG Strix XG32VQ monitor it dials back its maximum refresh rate from 144Hz to 120Hz with this driver in order to offer support, so be prepared for that possibility.

Now select the ‘Set up G-Sync’ tab under ‘Display’ in the Nvidia Control Panel and ensure that the ‘Enable G-Sync, G-Sync Compatible’ is checked.

Enable G-Sync Compatible

Select the FreeSync display, again it will be the one with the Nvidia eye logo on it, and check the ‘Enable settings for the selected display model.’ In the bottom right of the Nvidia Control Panel window hit ‘Apply’ and the monitor should quickly reconnect with all its G-Sync Compatible magic and you can test to see just how compatible it is.

If you’re lucky that will be the end of it and you’ll be able to play your favourite games without tearing and with all the added smoothness of your monitor’s refresh rate being synchronised on Nvidia cards.

Nvidia created a handy little demo for G-Sync back in 2013, and the Pendulum Demo is still a useful tool for checking to see if your dream G-Sync/FreeSync combo is working out.

Nvidia Pendulum GSync Demo

If you’re unlucky then you might experience some of the blurring and flickering that Nvidia has said is possible with some weaker FreeSync-ready displays.

Custom Resolution Utility

Troubleshoot your FreeSync issues

There are reports that you might be able to mitigate your monitor’s FreeSync issues by extending the lower frequency range of your panel using Custom Resolution Utility (CRU). Some displays’ ranges are very narrow and this can limit their effectiveness, though some are simply unable to operate outside of that limit.

To see if your monitor can use a lower frequency range, you can download the CRU software and experiment with extending the panel’s FreeSync range.

With the CRU app installed you will need to click the Edit button at the top of the main screen next to the name of your FreeSync monitor and add in a lower frequency.

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Match this frequency range by adding an Extension Block, and if there is no FreeSync Range data block displayed in the subsequent screen you can add one in and click OK.

Then restart your PC and test the new range using the Pendulum demo. If you end up with a black screen, or notice any artifacts, when the demo starts you will need to up the lower frequency in CRU, restart, and try all over again.

It’s as simple as that – G-Sync compatibility without having to spend extra on G-Sync hardware baked into your monitor. Try pairing the feature with the best SSD for gaming for the best experience, so you not only get smooth frame rates but super-fast loading times, too.

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