- AMD has accidentally leaked the source code to FSR 4
- Clues within this code suggest it could work to bring FSR 4 to older Radeon GPUs
- It is possible that this could happen and it seems that AMD is definitely trying to make it work
It seems that AMD has accidentally released the full source code for FSR 4, and clues within this code represent an exciting tip that the latest image speed that increases technology may come to older Radeon GPUs.
Toms Hardware reports that the wrong waste from Team Red was part of the release of a new version of its Fidelityysdk, and it was originally picked up by Videocardz and some eager eyes people on X. We know it was a mistake when AMD quickly withdrew the material (not before it was strongly screenshot, or actually downloaded by many many people).
As you may know, FSR 4 is currently only for the RX 9000 GPUs – it helps the latest graphics cards from AMD Run Games smoother – but within the source code that was briefly exposed, there is a fierce hint that Team Red may be considering bringing the technology to the RX 7000 models.
This proposal consists of the FSR 4 kilding code that appears to have Int8 -support, or at least work on it together with existing FP8 support. We do not need to get into the weeds of what these expressions mean, as it actually becomes very technical and involved.
All you really need to know is that FP8 workloads can be cut much faster with current gene card thanks to their increased AI accelerators designed for these tasks and in theory, the presence of InT8 would be easy to work better with RX 7000 graphics cards (it would not be relevant to RX 9000 GPUs).
As Leaker Uzzi38 on X puts it, this is: “Confirmation with certainty that AMD was interested in creating a diluted version of the model for smaller capable hardware.”
Analysis: A wider implementation of FSR 4 makes sense
So what does all this mean? As UZZI38 notes, it seems to confirm that AMD has at least experimented with getting FSR 4 running on previous gene graphics card (which would definitely be RX 7000 models).
While FSR 4 remains exclusive for RDNA 4 graphics card – and it was the first intake of AMD’s image speed that increases the technology to take this route and bring in AI (machine learning) to improvement – there is no reason why it cannot be technically run on older GPUs. The problem is whether it can be run well (or at least decent), And what performance levels players can be witnessed on an RX 7000 card.
So AMD has apparently given this a vortex, or at the moment may be implementing it (or trying to, anyway). I think this is likely to be in the works, considering experiments in Linux suggest that FSR 4 could work okay on the RX 7000 GPUs, and it also makes sense that Team Red wants to bring this technique to carry more far -reaching in time. When AMD has newer progress for the current Gen -GPUs ready to go -FSR Redstone is on the horizon for later in the year -the idea may be to drip -Feed FSR 4 down to the next level of Radeon Graphics cards.
As for how this can shake out, the key is obvious whether AMD can ensure that FSR 4 is performing enough on these last -Gen -GPUs -or whether it does not need to be diluted too much with regard to the resulting image quality players.
However, even if there is something of a performance hit, players may well take the exchange for improved image quality and details – along with reduced ghost and smears and other artifacts – which FSR 4 delivers over its predecessor FSR 3.
In short, this could be really big for PC players with RX 7000 graphics cards – or it may prove to be a no burger. I tend to be the more likely result here, but of course take it with the spice stacked high.



