The State of HBM4 Chronicled at CES 2026

The sixth-generation HBM technology is all set to make waves in AI designs.

By Majeed Ahmad, EE Times | January 12, 2026

High-bandwidth memory, a critical component in modern AI systems—particularly for running large-scale training models—was a centerpiece at CES 2026, with the memory trio of Micron, Samsung, and SK hynix holding their HBM4 cards. It was all about telegraphing the readiness of HBM4 devices, which address the “memory wall” that threatens to plateau AI scaling.

HBM4 is promising a solution to the memory wall—the bottleneck where data processing speeds outpace the ability of memory to feed that data to the processor—by carrying out the most significant architectural overhaul of high-bandwidth memory technology. It is purpose-built for next-generation AI accelerators and data center workloads to deliver major gains in bandwidth, efficiency, and system-level customization.

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