NVIDIA officially lowers HBM4 pin speed from 11.7 to 9.3 Gbps
zephyr_z9 · x · 2026-10-26
According to industry analyst @jukan05, NVIDIA has officially lowered the HBM4 pin speed spec from 11.7 to 9.3 Gbps. Reposter zephyrz9 quipped that SK Hynix and Micron "fucked up," implying supply or yield issues forced the spec change. The downgrade could affect memory bandwidth expectations for next-gen GPUs and production timelines across vendors.
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