AMD expands FSR 4.1 support to Radeon RX 7000 series GPUs

AMD has officially released FSR 4.1 upscaling for Radeon RX 7000 series graphics cards, expanding the technology to RDNA 3 hardware. Announced by Jack Huynh, the update rolls out via the AMD Software: Adrenalin Edition 26.6.2 driver.

According to TechPowerUp, the underlying architecture of this RDNA 3 version of FSR 4.1 differs from the RDNA 4 version. Current-gen GPUs feature native processing for 8-bit floating-point data, but RDNA 3 hardware uses INT8 data types and doesn't support FP8. AMD had to convert the model to 8-bit integer data. According to the company, the final image fidelity remains on par with that of RDNA4 hardware.

AMD's also working on optimisations for RDNA3-based APUs. Since integrated graphics aren't as powerful as discrete cards, the firm is fine-tuning lightweight machine learning models to help these chips run FSR 4.1 efficiently. We don't have official confirmation of RDNA3.5 support just yet, but a recent leak (spotted by Reddit user AthleteDependent926) from Valve showed the INT8-based model running on RDNA3.5 without issues, so future updates are expected to cover those solutions as well.

KitGuru says: Bringing FSR 4.1 to RDNA3 users via an INT8 conversion is a great move by AMD, ensuring older hardware isn't left behind when it comes to upscaling.

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