Unlocking AMD FSR4 on Older Graphics Cards: A Comprehensive Guide

Summary:

• Discover a workaround to enable AMD FSR4 on older RX 6000 and RX 7000 series graphics cards.
• This method involves simple file replacements that allow for enhanced gaming performance and image quality.
• Evidence suggests FSR4 can run effectively, challenging AMD’s official stance on support for older models.

AMD’s FidelityFX Super Resolution (FSR) technology, particularly the latest iteration FSR4, has intrigued gamers eager for enhanced graphics performance. Traditionally, support has been limited to newer cards, but recent developments suggest that older graphics cards, specifically those from the RX 6000 and RX 7000 series, can also benefit.

The Background

Despite technical restrictions, players and enthusiasts have demonstrated that FSR4 can be successfully deployed on older hardware. Past attempts to utilize FSR4 required outdated drivers, which lacked crucial optimizations. Nonetheless, a community-driven method has emerged, allowing users to experience the benefits of FSR4 without sacrificing functionality.

The New Approach

The latest workaround is straightforward. By replacing just two files from the older driver with those from the newer version, users can enjoy FSR4 enhancements while maintaining the latest performance improvements. Here’s how to do it:

1. Download Required Drivers:

   • Obtain the older driver version 23.9.1 and the newer version 25.9.2. Extract both drivers to their respective folders.

2. Locate the Key Files:

   • Navigate to the older driver’s directory: Packages/Drivers/Display/WT6A_INF/B395348 and copy the files amdxc32.dll and amdxc64.dll.

3. Overwrite Files in New Driver:

   • Go to the corresponding directory in the new driver (ensure the Bxxxxxx numbers match) and paste the two copied files, overwriting the existing ones.
4. Install the New Driver:
   • With the file replacements complete, install the new driver as usual.

Performance Testing

Initial tests on graphics cards such as the RX 6800 and RX 9070 have shown that there is minimal difference in game quality, regardless of the settings chosen—be it native, quality, or performance mode. Notably, issues like ghosting and afterimages appear to be negligible, confirming that FSR4 operates smoothly even on older hardware.

Cross-Platform Capabilities

Interestingly, experiments conducted on the Valve Steam Deck, which utilizes an RDNA2 customized GPU, revealed that FSR4 can be effectively implemented, resulting in sharper images without significant performance losses. However, the limited CPU and GPU power of the handheld device does affect frame rates.

Conclusion

The potential for FSR4 to run on older graphics cards contradicts AMD’s official position, which suggests that such functionalities are reserved for newer models. This newfound flexibility provides gamers with equal access to advanced graphical enhancements, enhancing their gaming experience without the need for immediate hardware upgrades.

With this simple yet effective method, older GPU users can breathe new life into their gaming rigs and unlock capabilities previously thought unattainable. Don’t let the limitations of your graphics card hold you back; take advantage of the community-driven solutions that are reshaping gaming accessibility!

By embracing development and innovation, the landscape of gaming is shifting, allowing for improved graphics across a broader range of devices. Explore these methods to elevate your gameplay today!

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