NVIDIA B200 Infrastructure & Deployment_
The Blackwell B200 is the GPU at the core of the current AI build-out — deployed both as 8-GPU HGX B200 systems and inside the GB200 NVL72 rack. Leviathan assembles, cables, tests, and commissions B200 infrastructure across the United States.
What Is the NVIDIA B200?_
The NVIDIA B200 is a Blackwell-generation GPU built from two reticle-limited dies fused into a single package by a 10 TB/s NV-HBI link, presenting as one GPU with 192 GB of HBM3e. It delivers a major step up in FP4/FP8 inference and training throughput over Hopper H100/H200.
The B200 ships in two dominant configurations: the air- or liquid-cooled HGX B200 8-GPU baseboard (Supermicro, Dell, and others), and the liquid-cooled GB200 NVL72 rack where B200 GPUs pair with Grace CPUs. The physical-layer work differs significantly between the two — Leviathan deploys both.
B200 Specifications_
| Specification | NVIDIA B200 |
|---|---|
| Architecture | Blackwell (dual reticle-limited dies, 208B transistors) |
| Memory | 192 GB HBM3e (8 stacks) — 8 TB/s bandwidth |
| Die Interconnect | NV-HBI, 10 TB/s die-to-die |
| GPU Interconnect | NVLink 5 — 1.8 TB/s per GPU |
| FP4 Performance | ~18 PFLOPS (dense) per GPU |
| TDP | Up to 1,000 W (air or liquid cooled) |
| Common Form Factors | HGX B200 (8-GPU baseboard), GB200 NVL72 compute tray |
| Networking | ConnectX-7 / Quantum-2 InfiniBand or Spectrum-X Ethernet |
HGX B200 vs GB200 NVL72 — Deployment Differences_
Air- or liquid-cooled 8-GPU servers in standard 19" racks (~14.3 kW air per system). Deployment centers on server rack-and-stack, GPU-to-leaf InfiniBand/Ethernet cabling, NVLink switch wiring within the chassis, and POST/burn-in. Higher rack count, conventional cooling.
72 B200 GPUs in one 120 kW liquid-cooled rack with a 72-GPU NVLink domain. Deployment is mandatory direct-to-chip liquid cooling, CDU/manifold integration, blind-mate compute/switch trays, and a far denser cable plant. See the GB200 NVL72 page.
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