Samsung began shipping HBM4 memory chips, claiming industry-first commercial availability. The chips deliver 11.7 Gbps processing speeds—46% faster than the 8Gbps standard—with peak performance hitting 13 Gbps. Samsung aims to triple HBM sales in 2026 versus 2025 and is expanding production capacity by 50%. Shares rose 6.4% Thursday. This positions Samsung to compete with SK Hynix, which holds roughly 70% of Nvidia's HBM4 demand.