I'm completely speechless. This looks so terrible I thought it was a joke, but apparently Nvidia released these demos to impress people. DLSS 5 runs the entire game through an AI filter, making every character look like it's running through an ultra realistic beauty filter.
The photo above is used as the promo image for the official blog post by the way. It completely ignores artistic intent and makes Grace's face look "sexier" because apparently that's what realism looks like now.
I wouldn't be so baffled if this was some experimental setting they were testing, but they're advertising this as the next gen DLSS. As in, this is their image of what the future of gaming should be. A massive F U to every artist in the industry. Well done, Nvidia.
The use of two GPUs is required right now as DLSS 5 still has a long way to go in terms of optimisation - both in terms of performance and its VRAM footprint. However, DLSS 5 is designed for use on a single GPU and that's how it will ship later this year. Quite how scalable it is also remains to be seen, but in common with other DLSS technologies, Nvidia tells us that the computational cost scales with resolution.