AMD FSR 4 INT8 Xbox Series X Simulation Shows Possible Advantage in Image Quality and Frame Rate

A leaked INT8 version of AMD's FSR 4 upscaling technology, compatible with older RDNA 2/3 GPUs and the Xbox Series X, demonstrates a mixed performance and quality profile. While offering superior upscaling quality over FSR 3, it introduces visual artifacts and is generally slower than FSR 3 and Intel XeSS, limiting its broad utility. Despite potential niche benefits for Xbox Series X in specific scenarios, PlayStation 5's lack of INT8 support hinders widespread multiplatform adoption. AMD has hinted at future FSR 4 updates, suggesting potential performance optimizations for older hardware.

Analysis

A leaked INT8 version of AMD's FSR 4 upscaling technology has demonstrated compatibility with older RDNA 2/3 GPUs and the Xbox Series X, contrasting with the official FP8 version designed for RDNA 4. While the FP8 format offers superior model accuracy and stability, the INT8 variant broadens hardware support, enabling its use on a wider installed base. This accidental leak provides an early look at potential future developments for AMD's upscaling ecosystem.

Digital Foundry's testing revealed that the FSR 4 INT8 introduces visual artifacts, including aliasing and temporal issues, which are exacerbated by the latest Adrenalin drivers. Despite offering superior upscaling quality compared to FSR 3, the INT8 version is significantly slower, providing only a 28% performance uplift in Performance mode, trailing FSR 3 (29% faster) and Intel XeSS (15% faster). However, in specific scenarios like Alan Wake 2, FSR 4 Performance mode slightly surpassed FSR 2 Balance mode by 4% in frame rate with a cleaner image.

The lack of INT8 support on PlayStation 5 consoles significantly limits the potential for widespread multiplatform game adoption, despite niche benefits for Xbox Series X. AMD's statement hinting at "more updates to FSR4 this Fall" suggests potential performance optimizations for RDNA 2 and RDNA 3 hardware, which could enhance its viability and competitive positioning against rivals like Intel XeSS, influencing future market share in the upscaling segment.

Key Decisions for Investors

• Investors should closely monitor AMD's upcoming FSR 4 updates, particularly any performance enhancements for RDNA 2/3 hardware, as this could expand its market reach and competitive standing against Intel XeSS.
• For Microsoft (MSFT) exposure, consider the potential for niche performance gains on Xbox Series X in specific titles, while acknowledging the broader multiplatform adoption challenges due to PlayStation 5's INT8 incompatibility.
• Intel (INTC) maintains a competitive edge in upscaling technology, with XeSS currently demonstrating superior performance compared to the leaked FSR 4 INT8, reinforcing its position in the GPU market.