NVLink-C2C
The ultra-fast coherent interconnect inside Grace Blackwell superchips
Hardware
In plain English
A teleporter between the CPU and GPU so they share one memory space without slow PCIe cable trips.
Technically
NVIDIA's chip-to-chip coherent interconnect delivering 900 GB/s bidirectional bandwidth between Grace CPU and Blackwell GPU. Provides hardware cache coherence across 128GB-748GB unified memory pools on DGX Spark and DGX Station.