AMD's new AI-based FSR 4 upscaler impresses in hands-on testing at CES 2025 on RX 9070-series hardware

Despite ostensibly launching its new RDNA 4 graphics cards and FSR 4 AI-based upscaler at CES 2025, there was much more information released to journalists in pre-briefings than in AMD's 45-minute CES 2025 keynote. Thankfully, Digital Foundry's Alex