ServeTheHome's 10K-word DGX Station teardown: 800Gbps to Blackwell Ultra but only 229Gbps to Grace
AccBalanced · x · 2026-10-08
ServeTheHome published a near-10,000-word deep dive into the Gigabyte NVIDIA DGX Station, the most thorough resource on it to date. Key findings: 800Gbps connectivity to Blackwell Ultra but only 229Gbps to the Grace CPU; performance tested 2x2 across different models using GPU/CPU and LPDDR5X/HBM3E over the NVIDIA C2C link; plus full topology mapping explaining why connectivity differs so drastically between components.
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