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[Digital Foundry] The Horizon games on PS5 Pro feature some of the best upscaling technology we've seen
To refresh your memory, Horizon Forbidden West on PS5 includes performance and resolution modes, which have been combined into a performance pro mode for the new console. Since a patch in summer 2022, performance mode on base PS5 has run at a circa 1800p checkerboard with dynamic resolution scaling, trading a bit of image quality and stability for a 60fps update rate that makes the game much smoother to play.
The new performance pro mode keeps that same 60fps but increases clarity substantially with an internal resolution of around 1440p. This mode boasts improved subpixel detail, better texture clarity and better anti-aliasing which is particularly noticeable on transparencies like foliage. Temporal stability is also improved, meaning the image suffers from fewer instances of artefacts or breakup. Finally, screen space reflections and depth-of-field effects are also noticeably improved, without the characteristic checkerboard pattern in SSR or shimmer in depth-of-field.
Based on side-by-side comparisons, it has managed to deliver something extremely similar to DLSS on PC, though the chances are that machine learning is not involved (such a solution already exists - PSSR - and we have doubts that Guerrilla would have trained its own neural network). Nvidia's solution handles particle trails better, but Guerrilla's better handles reflections in water, with smoother and less aliased results. The Guerrilla upscaler also fares marginally better in terms of motion, though the tiny amount of motion blur forced on in the PS5 version does confound the comparison somewhat. The FSR versus 'GSR' comparison is more heavily in favour of what Guerrilla has managed on PS5, with FSR tending to over-accumulate, leading to blurry grass when the camera is stationary and softer results in general - but still a perfectly acceptable resolve overall.
It's an impressive result for the home-grown solution and its efficacy perhaps speaks to why Guerrilla opted against using Sony's PSSR for its PS5 Pro update. The studio said that it developed the technique for its own future titles, then backported it to Horizon Zero Dawn Remastered and Horizon Forbidden West, so it'll be fascinating to see whether it'll be deployed elsewhere - or even by other Sony internal studios - in the future.
The Horizon games on PS5 Pro feature some of the best upscaling technology we've seen
Guerrilla Games' custom upscaling technology is one of the most impressive Digital Foundry has seen running on consoles.
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