FSR 4.1 reaches RDNA 2 hardware by switching to an INT8 model

AMD adapted its FSR 4.1 ML-based upscaler to run on INT8 shader support, extending the technology to RDNA 2 hardware including the Xbox Series S and Series X and Ally laptops via 26.101 drivers. The original FP8 matrix acceleration requirement had limited FSR to Radeon RX 9000 and later RX 7000 cards; the laptop version of the INT8 model is reportedly less than half the size of the full model. Early tests indicate better reconstruction from lower internal resolutions for Series S developers, at a small performance cost on older GPUs.