It’s looking bleak for AMD’s older GPUs – a file spotted in unofficial Radeon drivers further hints at FSR 4’s RDNA 4 exclusivity
Posted by:
Sarah Collins
Unofficial AMD Radeon drivers have hinted at the upcoming FSR 4 (FidelityFX Super Resolution) feature exclusive to RDNA 4 GPUs. The discovery of an FSR 4 DLL file in unofficial drivers suggests that RDNA 4 GPUs will utilize FP8 WMMA, key for FSR 4 functionality, shutting down hopes for older GPUs to benefit from it. It appears that older GPUs, including RDNA 3 and RDNA 2, may not support FSR 4 due to lacking FP8 WMMA optimization. This stands in contrast to Nvidia’s DLSS 4 tech, available across RTX GPU models, potentially impacting AMD’s fan base.
The implications extend to handheld gaming PCs utilizing RDNA 3.5 architecture, raising questions about their compatibility with FSR 4. Given the importance of upscaling for future graphically-intensive games, the utilization of FSR 4 in handhelds will be crucial for optimal performance. Games already supporting FSR 3.1 will seamlessly transition to FSR 4 upon release, with uncertainties remaining about older GPUs’ access to the new super-resolution feature.
In related news, there are suggestions that discrete RDNA 4 GPUs may not feature in gaming laptops soon, presenting an advantage for Nvidia’s RTX 5000 cards. Despite AMD’s claims about Ryzen AI Max 395+’s iGPU surpassing RTX 4070 laptop GPUs, Nvidia’s competitive pricing for RTX 5000 GPUs could sway buyers.
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