AMD just gave us our first glimpse of FSR 4's 'Redstone' update, with a host of machine learning-based improvements

AMD's Jack Huynh on stage at Computex 2025 in front of an FSR 4 Redstone presentation — (Image credit: AMD)

AMD just gave us our first look at a significant update to FSR 4, codenamed "Redstone." The new update is due to arrive in the second half of this year, and looks like something of a catch-up phase to counter Nvidia's recent efforts with DLSS.

Top of the list is Neural Radiance Caching, which AMD says "continually learns how light bounces in a scene to predict and store indirect lighting". FS4 Redstone will also feature machine learning-enhanced ray regeneration, which it says is capable of regenerating inaccurate ray traced pixels.

A screenshot from an AMD presentation on FSR 4 Redstone. — (Image credit: AMD)

And a very shiny AMD-red car, to demonstrate it, of course. The news comes as a bit of a last-minute surprise, but yours truly has been typing furiously on his laptop at the press conference to catch you up. Technical details are still thin on the ground, but it all sounds good on paper, at least.

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AMD at Computex 2025 announcing FSR 4's Redstone update — (Image credit: AMD)

In my opinion, it seems to show that AMD is all-in on machine learning-enhanced upscaling and image-improving tech, and is hopefully taking some big leaps forward in its efforts to catch up to Nvidia's DLSS.

FSR has seemed a little behind the curve in the long-running battle for upscaling and AI-image enhancement domination, but AMD seems determined to speed up at this point.

Perhaps the popularity of the RX 9070 and the RX 9070 XT provided a bit of motivation, or perhaps AMD are enacting a grand plan to close the gap to team green. Whatever. Improvements are improvements, and I'll be anxious to see them for myself.

Things have really hotted up in the GPU announcement department recently, haven't they? Exciting times, no doubt.

Andy built his first gaming PC at the tender age of 12, when IDE cables were a thing and high resolution wasn't—and he hasn't stopped since. Now working as a hardware writer for PC Gamer, Andy spends his time jumping around the world attending product launches and trade shows, all the while reviewing every bit of PC gaming hardware he can get his hands on. You name it, if it's interesting hardware he'll write words about it, with opinions and everything.

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