Compatible with GeForce RTX 40 and 30 Series GPUs, this system uses AI to upscale lower res content up to 4K, matching the users display resolution. This AI can remove compression artifacts and improves video sharpness, allowing users to stream at lower bitrates and still have crisp visuals.

If you have a compatible GPU, you need to get the latest version of GeForce Game Ready Driver, and in order to automatically upscale video in your browser, you need the latest versions of Chrome or Edge, which recently updated to support RTX VSR.

https://www.youtube.com/watch?v=XA-tQpQqD7U
https://blogs.nvidia.com/blog/2023/02/28/rtx-video-super-resolution/