Grace
NVIDIA's Arm-based server CPU, paired tightly with its GPUs over a coherent link in superchip designs.
Current numbers
~900 GB/sNVLink-C2C coherent host-GPU bandwidth (Grace–Blackwell); ~7–14x PCIe Gen5/Gen6 per x16
72 cores / 480 GBNVIDIA Grace: 72 Arm cores, 480 GB LPDDR5X @ ~546 GB/s, ~250 W; 36 per GB200 NVL72
2 : 1GPU:CPU ratio fixed by the GB200 NVL72 package (72 Blackwell GPUs : 36 Grace CPUs)