In theory, RDNA 3 cards should enable FSR 4 by simply changing the algorithm to INT8 or Bfloat16 core instead of FP8, or implementing FP8 in software. However, both these options come with difficult challenges, including potentially compromising performance or quality. For AMD to push that out, they would need to see considerable user demand and invest in a version modified to leverage the capabilities of RDNA 3. In practice, however, due to the technical and business aspects involved, it is unlikely they will support this officially—but a custom-adapted version would still be a theoretical possibility.
We all need to get together and show our interest in adding this feature to older video cards, I'm sure we won't be forgotten.
Do everything possible to get AMD's attention.
