Utilizing FSR 4 on Radeon RX 7000 (RDNA 3): A Guide for Performance Enhancement Benchmarks
In an exciting development for gamers, users with Radeon RX 7000 series graphics cards have managed to run AMD's FSR 4 in some DirectX 12 games, despite it not being officially supported. This was achieved by leveraging leaked FidelityFX SDK files, although no specific game titles were officially endorsed for this early adoption.
However, it's important to note that this method comes with certain risks, particularly in games that use anti-cheat software. Officially, FSR 4 is supported in games that already have FSR 3.1 compatibility with DirectX 12, such as Borderlands 4 and Hell Is Us, after the AMD Adrenalin 25.9.1 update.
ComputerBase is set to delve deeper into the topic of FSR 4 on "incompatible" graphics cards in the near future. The upcoming analysis will include a host of benchmarks and detailed comparisons of image quality between the INT8 and FP8 variants on various graphics cards.
For those interested in trying out FSR 4, here's a step-by-step guide. First, you'll need to install OptiScaler, which can be initiated by running the setup-windows.bat file. Once installed, you can invoke OptiScaler using the "Insert" key when launching your game. To switch the upscaler to FSR 4, select the active upscaler under "Upscalers" and then select the alternative under "FFX Settings".
It's worth noting that OptiScaler must be installed separately for each game, and the installation process involves copying the entire OptiScaler archive file to the game folder, overwriting existing files, and replacing the provided DLL with the INT8 version.
Initial benchmarks of FSR 4 INT8 on the Radeon RX 7900 XTX and Radeon RX 9070 XT have shown a performance decrease compared to the FP8 counterpart. However, the gap is relatively small on the RX 9070 XT. On the RX 7900 XTX, the performance loss from using FSR 4 INT8 versus FSR 3 is primarily due to the general switch to FSR 4, as FSR 4 is known to be less efficient compared to FSR 3.
Conversely, on the Radeon RX 9070 XT, the performance of FSR 4 FP8 is significantly better than FSR 4 INT8 and native resolution.
The editorial team welcomes further feedback from the community on the success of FSR 4 on "incompatible" graphics cards, image quality, and performance. Your valuable insights will help us continue to provide you with informative and engaging content.
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Stay tuned for our in-depth analysis on FSR 4 on unsupported graphics cards, coming soon!
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