Why 1080p video looks soft on a 4K monitor
Nvidia's RTX Video Super Resolution (RTX VSR) is a video scaling feature. It exists because of how browsers handle lower-resolution video. Nvidia's launch post, dated February 28, 2023, says that when a display is above 1080p, the browser has to scale the video to fit. Most browsers use basic upscaling, and the result is soft or blurry.
A 1080p frame on a 4K panel has to be stretched to fill four times as many pixels. A simple filter blends neighbouring pixels. Fine detail goes mushy and compression artifacts become easier to see. The exact filtering varies by browser, so treat the "each pixel becomes a 2×2 block" picture as a simplification.
What RTX Video Super Resolution actually does
Nvidia says the feature uses a deep learning network that upscales and reduces compression artifacts in a single pass. The network looks at the low-resolution frame and predicts a residual image at the target resolution. That residual is laid over a conventionally upscaled image, which corrects artifact errors and sharpens edges. Nvidia lists the artifacts it targets as blockiness, ringing around edges, washed-out fine detail and banding on flat areas.
Two caveats matter here:
- It's a generated enhancement, not a restored original. The AI predicts plausible detail. It can't recover information that the source never contained, and Nvidia doesn't promise a faithful reconstruction.
- Results depend on the source. Heavily compressed or very old footage may improve a lot or only a little. A screenshot comparison won't tell you much, so judge it on your own content.
Which GPUs and resolutions
- GPUs: VSR launched on RTX 30 and 40 series GPUs, got RTX 20 series support afterwards, and is now available on all Nvidia RTX GPUs. Nvidia's NVIDIA App page also describes VSR as working on all GeForce RTX GPUs.
- Input range: A Wikipedia summary says the feature supports inputs from 360p to 1440p and outputs up to 4K. That is secondary sourcing, and I didn't confirm the range in a current Nvidia document. Treat it as a guide rather than a guarantee.
How to turn on RTX Video Super Resolution
You have two routes. The Control Panel is the older one. The NVIDIA App is the newer one.
Route 1: NVIDIA Control Panel
- Open NVIDIA Control Panel.
- Under Video, click Adjust video image settings.
- If you have more than one display, select the one you watch video on.
- In the "RTX video enhancement" section, tick Super resolution.
- Pick a quality level from 1 to 4. Nvidia's help page describes level 1 as the lowest enhancement and level 4 as the highest. Nvidia's launch post says the range runs from the lowest GPU impact to the highest upscaling improvement.
Route 2: NVIDIA App
Nvidia's release notes put the controls at System > Video > Super Resolution. Nvidia says the app also adds an on-screen indicator that shows whether enhancement is active and which video is being enhanced. Nvidia's release notes describe two further changes:
- HDR content: VSR now enhances HDR content.
- Lower GPU load: Nvidia says GPU usage is down 30%.
- GPU priority: You can prioritize GPU utilization, which lowers quality while demanding apps such as games are running.
A rule of thumb from the original author, not from Nvidia, is to use levels 1–2 for clean footage that is only slightly below your monitor's resolution. Use 3–4 for older, lower-resolution material. Higher levels need more GPU power, so adjust to taste.
Where it works
Nvidia's own material names Chrome, Edge and Firefox as the places it works. Nvidia says the Control Panel setting applies to video played in supported browsers, not to every video application.
Nvidia also lists the VLC media player RTX branch for RTX Video HDR. The original walkthrough claimed VLC is the only supported media player and gave a Direct3D11 output step. I couldn't confirm that step against Nvidia documentation, so check the VLC RTX branch's own instructions rather than assuming it.
Other practical points:
- Drivers and browsers: Use a current Nvidia driver and a current browser. The original 2023 minimum versions, Chrome 110 and Edge 110, are only history.
- Optimus laptops: If a laptop switches between integrated and discrete graphics, you may need to set Chrome or Edge to High Performance in Windows graphics settings. That tip comes from the briefing's reading of Nvidia's documentation, and I didn't confirm it independently.
- DRM-protected streams: The original author warns that some may block the feature. I found no official list of which services this affects. Don't assume Netflix or any other service will always allow it. Use the on-screen indicator to check.
RTX Video HDR
RTX Video HDR is a separate feature. Per Wikipedia, VSR uses Tensor Cores to upscale browser video in real time. HDR uses the same hardware for colour and brightness. Nvidia says it converts standard dynamic range video into high dynamic range when played in Chrome, Edge, Firefox or the VLC RTX branch.
Requirements
- An RTX GPU.
- An HDR10-compatible monitor or TV.
- Windows HDR switched on.
Steps
- Turn on HDR in Windows under Settings > System > Display > HDR.
- Open the Nvidia video controls. The Control Panel route Nvidia gave at launch was Adjust video image settings > RTX Video Enhancement, where you enable HDR. In the NVIDIA App, the Video tab under System should carry the same option.
- Adjust brightness, saturation and contrast if sliders are offered. Nvidia's release notes mention customization sliders. The exact labels and location may vary by app version.
Nvidia says HDR and VSR can be used together. Don't expect a true HDR master, though. The feature remaps SDR footage to look brighter and more colourful. Some people will love the result and others will find it oversaturated. The sliders are there for that reason.
A correction on AMD
The popular version of this advice compares Nvidia's feature to AMD's "VSR". That comparison is wrong, because the two acronyms stand for different things.
- Nvidia RTX VSR is AI upscaling of video playback.
- AMD VSR is Virtual Super Resolution, a rendering feature.
AMD's documentation says VSR lets games render above the display's native resolution and then scales them down. AMD describes the effect as supersampling anti-aliasing for games and applications without native support. AMD also warns that text may look blurry when VSR is used on the Windows desktop.
So AMD's feature isn't a like-for-like alternative for upscaling a 1080p YouTube stream in a browser. It works in the opposite direction. The original article's claims that it "works universally" and upscales video are not supported by AMD's documentation.
Is it worth it?
It costs you nothing if you already own an RTX card, and the settings take a minute to try. The best candidates are older, lower-resolution content and compressed streams on a high-resolution monitor. A 4K stream at a good bitrate has less to gain.
The original author used the features to rewatch a 1990s anime and said it felt like seeing it for the first time. That is one person's experience and not a promise. The only reliable test is to turn it on, pause on a few frames, toggle it off and compare.
If you game while watching video, keep an eye on the GPU-priority option. It exists to stop video enhancement from competing with your game.
Quick checklist
- RTX GPU, ideally with a current driver.
- Chrome, Edge or Firefox, up to date.
- Enable Super Resolution in the NVIDIA App or the Control Panel and start at a middle quality level.
- For HDR, enable Windows HDR first and make sure the monitor supports HDR10.
- Confirm it's working with the on-screen indicator in the NVIDIA App, if you have it.
- On a hybrid-graphics laptop, set the browser to High Performance.