There's probably nothing that stops AMD from releasing FSR 4 for non-RDNA 4 GPUs, but it just keeps avoiding it.
AMD Says "No Updates to Share at This Time" in Response to Whether it Will Release FSR 4 for Previous-Gen RDNA GPUs
It has been proven multiple times that AMD's latest FSR 4 upscaler works on older RDNA GPUs such as RDNA 2 and RDNA 3. This isn't something new, as we have been seeing users finding workarounds to turn on FSR 4 on RX 6000 and RX 7000 GPUs using the leaked files. When AMD accidentally released the INT8 DLL file for FSR 4 last year, it was quickly downloaded and used for enabling the latest upscaler on older RDNA GPUs.
It was clear from the comparisons made between FSR 3.1 and FSR 4.0 on RDNA 2/3 GPUs that FSR 4.0 is doing an excellent job in improving the visual quality drastically. Even though the INT8 version of FSR 4 introduced some significant performance regressions, users could use the FSR 4 Performance mode to achieve the FSR 3.1 Quality performance while having better visuals.
Hardware Unboxed reached out to AMD to know about the current status of INT8 FSR 4 for previous-gen RDNA GPUs, since it has been nearly a year since FSR 4 came out exclusively for RDNA 4 GPUs. Unfortunately, AMD hasn't confirmed its release. It simply said,
No Updates to Share at this time.
- AMD to HUB
We don't know if AMD even planned to release it later or is simply ignoring the release, as it doesn't seem FSR 4 is fit for older-gen GPUs. Of course, the performance overhead is quite noticeable, but so is DLSS 4.5's impact on RTX 20 and 30 series. However, NVIDIA decided to release DLSS 4.5 for older RTX GPUs and left it up to users to choose between DLSS 4.5 and previous DLSS versions.It is already known that RDNA 2 and RDNA 3 GPUs lack native FP8 instructions required to support the FP8 version of FSR 4, but when AMD has made an INT8 version itself, why not just release it?
This is doing nothing but making a lot of gamers avoid AMD GPUs, as modern tech becomes limited only to modern hardware. NVIDIA, on the other hand, has kept its newer upscaling technologies open for much older hardware.
About the author: Sarfraz Khan is a hardware reporter with a focus on PC components and the builder community. With years of experience writing about PC hardware and laptops, his work has been featured on several reputable technology publications. Sarfraz's hands-on experience is demonstrated through his first-person accounts of using and comparing different hardware configurations, providing practical and relatable insights for everyday users. His technical analysis is respected by peers in the enthusiast community and has been cited by specialized hardware sites such as Germany's Igor's Lab.
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