HBM4 Explained: What the New High Bandwidth Memory Means for AI Servers
High Bandwidth Memory is one of the central specifications of an accelerator for AI and machine learning workloads, because the model and its working data have to fit into it. JEDEC published the HBM4 standard in April 2025, and the first commercial HBM4 shipments were announced in February 2026. This article explains what HBM4 changes […]