AMD's FSR 4 Leak Hints at Potential Expansion to RX 7000 GPUs

AMD's Accidental Leak Reveals Potential FSR 4 Expansion

AMD, the renowned graphics processor manufacturer, has inadvertently released the full source code for its latest FidelityFX Super Resolution (FSR) 4 technology. This unintended disclosure has sparked excitement among tech enthusiasts, as it suggests a possible expansion of the frame rate boosting technology to older Radeon GPUs, particularly the RX 7000 series 1

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The Accidental Unveiling

The leak occurred during the release of a new version of AMD's FidelitySDK. Although quickly retracted, the brief exposure allowed keen observers to capture and analyze the code 1

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. This mishap has provided valuable insights into AMD's potential plans for its upscaling technology.

Technical Implications of the Leak

Within the leaked source code, there are strong indications that AMD is considering bringing FSR 4 to RX 7000 models. The code appears to include INT8 support alongside existing FP8 support. While the technical details are complex, the presence of INT8 support suggests compatibility with RX 7000 graphics cards 1

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Current State of FSR 4

As it stands, FSR 4 is exclusive to AMD's latest RX 9000 GPUs, leveraging their advanced AI accelerators for improved performance. The technology represents a significant leap in AMD's frame rate boosting capabilities, incorporating AI (machine learning) for refinements 2

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Potential for Broader Hardware Support

The leak has fueled speculation about AMD's intentions to expand FSR 4's compatibility. While the technology is currently optimized for RDNA 4 architecture, experiments suggest it could potentially run on RX 7000 GPUs. The key challenge lies in achieving satisfactory performance levels and image quality on these older models 1

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FidelityFX SDK 2.0 and Future Developments

Alongside this leak, AMD officially launched FidelityFX SDK 2.0, which includes FSR 4 for game developers. This update also features an Unreal Engine 5 plugin, simplifying the integration of FSR 4 into games 2

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. Furthermore, AMD is laying the groundwork for future AI-driven technologies, such as FSR Redstone, which promises an AI-powered version of FidelityFX Frame Generation 2

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Implications for Gamers and Developers

If AMD successfully implements FSR 4 on RX 7000 series GPUs, it could significantly benefit a broader range of PC gamers. Even with potential performance trade-offs, the improved image quality, reduced artifacts, and enhanced detail could be a welcome upgrade for many users 1

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For developers, the FidelityFX SDK 2.0 update streamlines the integration of FSR 4 into games, particularly those using Unreal Engine 5. This ease of implementation could lead to wider adoption of AMD's upscaling technology across various titles 2

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Looking Ahead

While AMD has not officially confirmed plans to bring FSR 4 to older GPUs, the leaked source code and ongoing experiments suggest it's a possibility. As AMD continues to refine its AI-driven upscaling technology and prepares for future iterations like FSR Redstone, the gaming community eagerly anticipates further developments in this rapidly evolving field of graphics technology 1

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