AMD Unveils Instinct MI455X AI Accelerator and Increases GPU Memory Kit Prices

AMD has launched its Instinct MI455X accelerator, featuring HBM4 memory and built on a 2nm process. This significant hardware development for AI infrastructure was announced at AMD's 'Advancing AI 2026' event. Concurrently, AMD has raised GPU memory kit prices by over 10%, following a similar move by Nvidia, indicating potential shifts in semiconductor supply chain costs and AI infrastructure spending.