Filed under hbm.

The Interconnect Nobody Can Buy

UALink 2.0 was ratified in April 2026; no production-ready silicon exists. For procurement decisions targeting Q1 2027 delivery, that leaves NVIDIA NVLink over InfiniBand or RoCE on Ethernet — each with known performance trade-offs, HBM supply constraints, and operational costs that never appear on the CapEx comparison slide. The interconnect you want and the silicon you can order are not the same thing.