DLSS is heading to Red Dead Redemption 2 next week, along with the Red Dead Online Blood Money update, which promises to bring better frame rates and image quality for gamers who have lower-end (but still relatively new) graphics cards from Nvidia.
DLSS, or Deep Learning Super-Sampling, is an Nvidia technology on 20 and 30 series cards that uses deep learning to upsample, say, a 1440p image to look like a true 4K one. In other words, your GPU does less work to create a higher resolution, sharper image, meaning better frame rates.
Personally, though, I don't really have much excitement for this one, as the game runs easily at frame rates way above 60FPS and never dips below it on my RTX 3080 at very very high settings. This may prove more useful for 20-series or lower-end 30-series cards, though. It does have drawbacks, mind, with some fine details and other parts of the images not looking quite right, in my experience. That being said, if you need the FPS boost, DLSS is a great technology.
Now if ray-tracing was something that was on the cards, I'd be more interested. Sadly, this does not seem to be on the cards, but you never know. It'll also be interesting to see how DLSS stacks up compared to the AMD FidelityFX Super-Resolution hack that landed in GTA V this past week.