Image Credit: AMD
AMD has officially unveiled its high-resolution technology, FSR 4, which leverages machine learning algorithms to analyze image content and perform real-time reconstruction, thereby delivering sharper visuals even in games rendered at lower native resolutions.
FSR 4 brings significant improvements in image detail and stability while reducing motion-related artifacts. However, it is currently supported only on AMD Radeon RX 9000 series GPUs built on the RDNA 4 architecture.
During the launch, AMD appeared to encounter an unexpected mishap: an engineer accidentally uploaded the FSR 4 source code to GitHub, only to hastily remove it once the mistake was discovered in order to prevent downloads or repository cloning.
It is worth noting that earlier iterations—FSR 1, FSR 2, and FSR 3—were indeed released as open source under the MIT license and remain available on GPUOpen with complete source code access.
For now, however, AMD has made no announcement regarding the open-sourcing of FSR 4, which is currently distributed solely as a precompiled, signed DLL.
Should the leaked source code have already been downloaded and redistributed, it is conceivable that unofficial variants of FSR 4 could emerge, potentially extending support to RDNA 3 and even older architectures. From a user’s perspective, such a development might not be entirely unwelcome.
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