Nvidia's DLSS 4.5 Upscaler
Nvidia’s upscaling uses an advanced “Transformer Model” in order to upscale games from lower resolution to higher ones, allowing users to get the performance of lower resolution and the visuals of a higher resolution. The introduction of DLSS 4.5 specifically has advertised the upscalers ability to reconstruct the detail of a 4k image using low resolution like 1080p or even 720p. A quick demonstration of this with the 5070 will be shown below.
Here is a zoomed in image of Cyberpunk gameplay. As advertised, DLSS 4.5 is able to improve performance while looking nearly identical when upscaling from 1080p (Native on the top, 1080p in the middle). The 720p image (bottom) is also viable, although may be better used with a TV setup, where the user will be farther away from the screen and will not notice the minute details that would be seen at higher resolutions.
DLSS 4.5 can be enabled with the Nvidia app for all games you wish to play, or specific games where it may be more needed. Without doing this process. Games will default to the slightly older DLSS 4, which, while also providing impressive results, is not as good as the most recent version, especially at lower resolutions.
While other Nvidia RTX GPUs can use this technology, anything below the 40 series cards lack the hardware necessary to receive the performance uplifted that can be gotten from 40 and 50 series cards. Fortunately, the 5070 and other 50 series cards have FP4 precision, which is used to make AI models used for upscaling and multi-frame generation faster) that isn't being utilized to its fullest potential, making it ready for future updates to DLSS that will eventually use this technology.