scale-up (NVLink5/GPU) vs scale-out (per-NIC) bandwidth — roughly 18x apart per direction (900 vs 50 GB/s each way)
~1.8 TB/s vs ~400 Gb/sobserved
| 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 | 2025 |
| Source | NVIDIA / SemiAnalysis · Blackwell platform feature list: fifth-generation NVLink and networking specifications |
| Review | checking…review by 2026-08-20 · standard cadence |
| Recorded changes | last 2026-07-02 |
| Claim id | scale-up-nvlink5-gpu-vs-scale-out-per-nic |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.