NVIDIA Quantum-X800 InfiniBand Platform
800 Gb/s InfiniBand switching for trillion-parameter AI factories. The end-to-end fabric used in Vera Rubin and Blackwell-class systems.
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Overview
NVIDIA Quantum-X800 is the world’s first end-to-end 800 Gb/s InfiniBand networking platform. Built around the Quantum Q3400 switch and ConnectX-8 SuperNIC, Quantum-X800 delivers 5x the bandwidth and 9x higher in-network compute capability of the previous generation, scaling AI factories to hundreds of thousands of GPUs.
Key Features
- Quantum Q3400 Switch: 144 ports of 800 Gb/s InfiniBand
- SHARPv4: In-network reductions for collective communication
- Adaptive Routing & Self-Healing: Maximum fabric utilization at scale
- End-to-End Stack: Switches, SuperNICs, cables, and NVIDIA UFM management
Technical Specifications
| Specification | Details |
|---|---|
| Switch Bandwidth | 115.2 Tb/s |
| Ports per Switch | 144 x 800 Gb/s |
| Generation | InfiniBand XDR |
| In-Network Compute | SHARPv4 (FP8/BF16/FP32) |
| Form Factor | 1U / 2U managed switch |
Ideal Use Cases
- Large-scale GPU cluster scale-out fabrics
- HPC and scientific computing
- AI training jobs spanning thousands of GPUs
- Sovereign AI and national supercomputing centers
Why Choose Quantum-X800?
InfiniBand remains the gold standard for tightly-coupled AI training. We help architect Quantum-X800 fabrics, plan cabling and optical strategies, and integrate UFM with your monitoring stack.
Interested? Contact us for personalized pricing and configuration options.
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