NVIDIA NVLink and NVLink Switch product page and specification table

Fields

id

sources/link-nvlink-switch-spec

URL

https://www.nvidia.com/en-us/data-center/nvlink/

Publisher

NVIDIA

Kind

spec-sheet

Accessed

2026-10-03

notes

Vendor spec page carrying the authoritative per-generation table: NVLink bandwidth per GPU (900 GB/s Gen4 / 1,800 GB/s Gen5 / 3,000 GB/s Gen6), max links per GPU (18/18/36), GPU domain sizes and total aggregate bandwidth per NVLink Switch generation. Page states figures are preliminary and subject to change. Also the origin of the 'NVLink is a 3 TB/s bidirectional' wording that establishes NVIDIA's per-GPU numbers are bidirectional aggregates.

Notes

Vendor spec page carrying the authoritative per-generation table: NVLink bandwidth per GPU (900 GB/s Gen4 / 1,800 GB/s Gen5 / 3,000 GB/s Gen6), max links per GPU (18/18/36), GPU domain sizes and total aggregate bandwidth per NVLink Switch generation. Page states figures are preliminary and subject to change. Also the origin of the 'NVLink is a 3 TB/s bidirectional' wording that establishes NVIDIA's per-GPU numbers are bidirectional aggregates.

Cross-references

This record references no other records.