FidelityFX Super Resolution 3, better known as FSR 3, is the latest version of AMD’s upscaling technology, which promises a breakthrough by introducing frame interpolation and latency reduction. The first feature should make FSR a closer competitor to DLSS, which currently clearly dominates the market, but at the cost of only running on NVIDIA graphics.

The latest we know of frame interpolation in FSR 3 it’s according to a line of code seen by a Twitter user @Kepler_L2 in one of the GPUOpen repositories on GitHub, this function points to being will be allowed by the driver and this will generate more than one interpolated frame.

In the source code of the Platform Abstraction Library (PAL/Platform abstraction library) posted on GitHub, you can see two lines of code that apparently refer to how the frame generation technology would be implemented in FSR 3.

You can see it in the code FSR 3 will have a frame rate of up to four interpolated frames. This means that for each real frame, the scaling technology would be able to generate up to four interpolated frames. This may not come as a complete surprise to NVIDIA users as DLSS 3 is capable of generating one interpolated frame per real frame if enabled.

However, we just mentioned one important difference between FSR 3 and DLSS 3, which is that DLSS 3 doesn’t allow users to change the frame rate value, so it stays fixed at 1 unless NVIDIA changes it (and if you can bear them). DLSS relies on Tensor kernels and model learning to generate interpolated images, but even with AI, the green giant’s upscaling technology initially ran into performance issues. tearing and ghosts that they are still trying to resolve definitively.

Since part of the power of DLSS is based on the use of artificial intelligence, it is expected that AMD will go in this direction, but the head of Radeon has already said that, at least for now, will not allow FSR to fully rely on artificial intelligence. On the other hand, because the characteristic frame interpolation would be integrated into the driver, opening the door for this FSR 3 feature not to work on NVIDIA and Intel graphics In addition, some are already speculating that the new version of AMD’s upscaling technology, in any form and implementation, will only work with Radeon graphics.

We’ll see what eventually happens with FSR 3, which is not yet available, not even in the early stages for commercial video games. Lines of code that have surfaced in PAL indicate that features like frame interpolation will only work on Radeon graphics, and we’ll see what drivers they see with the mess AMD has piled up around Linux support (and yes, that affects Steam Deck).

If this possibility is confirmed that FSR 3 will only work on Radeon graphics without doing so, even if it is neutered by NVIDIA and Intel, it would be a betrayal by AMD to those developers who bet on their technology, as it was promoted in its moment as multi-platform.

Another aspect that remains up in the air is the image quality resulting from the interpolation of more frames, but here it is important to remain cautious, as this would not be the first time that a very promising technology has produced very disappointing results.