Broadcom Jericho4 deep-buffer router: 3 nm, HBM packet buffer (capacity not published), RoCE over more than 100 km via 3.2 Tbps HyperPorts (Broadcom claim)
51.2 Tbpsobserved
| 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. |
|---|---|
| Scope | HBM capacity is not published. Broadcom's product copy gives a buffering multiple against on-chip memory without a baseline, so no buffer size can be derived. Buffer bandwidth is 2x Jericho3-AI (Next Platform briefing). |
| As of | 2025 |
| Source | Broadcom / The Next Platform · Paragraphs describing HyperPort, 3 nm process, HBM support, 51.2 Tb/s variant, and 100 km+ DCI reach |
| Review | checking…review by 2027-01-15 · standard cadence |
| Recorded changes | last 2026-06-29 |
| Claim id | broadcom-jericho4-deep-buffer-router-3nm-hbm |
Where the guide uses it
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