AMD's tiny FSR 3 update aims to improve upscaling quality but also lays the foundation for adding Redstone AI tech to games

AMD's Jack Huynh on stage at Computex 2025 in front of an FSR 4 Redstone presentation

(Image credit: AMD)

Software updates usually only grab news headlines when it's a major new version, bringing something special or different for users to enjoy. So a minor revision by AMD to its FSR toolkit wouldn't normally be of note, but this one is actually special, despite the fractional change in version number. With this update, FSR will be even easier to update in the future and, more importantly, it paves the way for Redstone features to be added to games.

As always, AMD spilt the beans on the new version of FidelityFX Super Resolution (FSR) via its GPUOpen site, a central resource for all things GPU, games, and development. "FSR 3.1.4 includes several fixes, such as improved upscaling quality, and features a signed, easily upgradable DLL that supports our FSR 4 driver upgrade feature," reads the blurb.

In the case of the former, the tweaks "reduce[d] upscaler ghosting in newly disocluded [sic] pixels compared with FSR 3.1.3." I was under the impression that the spelling is 'disoccluded', but no matter—it basically means pixels that were previously hidden (occluded) have now become visible (disoccluded) because something has moved.

PC Gamer - Horizon Forbidden West - 1440p Quality Setting - FSR 3.1 and DLSS 3.5 Comparison - YouTube

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By far the most important aspect of the 3.1.4 update is this statement: "Ready to support upcoming AMD FSR Redstone technologies with required camera parameters for FSR ML Frame Generation."

Redstone is an FSR 4 project that AMD is clearly hoping will result in the tech achieving parity with DLSS, because it uses machine learning (ML) to improve ray-traced lighting (via an ML-driven radiance cache and denoiser), along with superior upscaler and frame generation quality.

FSR 4 already uses AI for the latter two, so just think of Redstone as being a juiced-up version of the latest FidelityFX Super Resolution. And who doesn't want more juice with their FSR?

A presentation slide from AMD explaining the fundamental aspects of its FSR 4 Redstone project. — (Image credit: AMD)

AMD announced Redstone back in May, though its scheduled completion date is still down as a very vague 'H2 2025'. Given that we're already in the second half of 2025, Redstone could appear tomorrow, next week, next month or New Year's Eve. As much as I'd like to see it out now, I hope AMD doesn't rush it and makes sure it's as good as it can be before rubberstamping it for developers to use.

So yeah, FSR 3.1.4 is a teeny tiny update, but underneath the scant details in the release notes, it's actually quite an important one.

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Nick, gaming, and computers all first met in the early 1980s. After leaving university, he became a physics and IT teacher and started writing about tech in the late 1990s. That resulted in him working with MadOnion to write the help files for 3DMark and PCMark. After a short stint working at Beyond3D.com, Nick joined Futuremark (MadOnion rebranded) full-time, as editor-in-chief for its PC gaming section, YouGamers. After the site shutdown, he became an engineering and computing lecturer for many years, but missed the writing bug. Cue four years at TechSpot.com covering everything and anything to do with tech and PCs. He freely admits to being far too obsessed with GPUs and open-world grindy RPGs, but who isn't these days?

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