AMD’s latest upscaling technology, FSR 4, officially requires the brand-new RDNA 4 GPUs, frustrating users of older RX 6000 and RX 7000 series cards who have been sidelined despite their hardware’s capability. While AMD limits FSR 4 to its RX 9000 lineup, citing architectural needs, enthusiasts have found ways to run it unofficially on RDNA […]