NVIDIA officially lowers HBM4 pin speed from 11.7 to 9.3Gbps
AccBalanced · x · 2026-10-26
Per a post from @jukan05, NVIDIA has officially lowered the HBM4 pin speed from 11.7Gbps to 9.3Gbps — roughly a 20% cut — with the reshare quipping it stands for "High-Bandwidth Mistake." Since pin speed caps next-gen data center GPU memory bandwidth, this suggests official HBM4 specs will fall short of earlier expectations, a meaningful change for AI compute roadmaps.
Related event: Report: NVIDIA Officially Lowers HBM4 Pin Speed Spec(2 posts)→
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