HBM3E is deployed with NVIDIA GB300; HBM4 is in high-volume production for NVIDIA Vera Rubin
HBM3E → GB300; HBM4 → Vera Rubinobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2026 |
| Source | SK hynix GTC 2026 account; Micron HBM4 production release |
| Review | checking…review by 2026-11-04 · standard cadence |
| Recorded changes | last 2026-08-31 · 2 revisions tracked |
| Claim id | 2026-hbm3e-supply-gap-fully-allocated-cowos |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.