AI & Emerging Tech • • 3 min read

Nvidia Quantum-X800 InfiniBand Architecture Doubles AI Cluster Interconnect Throughput

Nvidia rolls out 800Gb/s Quantum-X800 InfiniBand switches and ConnectX-8 SuperNICs, delivering end-to-end telemetry and in-network computing for 100k-GPU superclusters.

Ethan Brooks
Ethan Brooks
Editor-in-Chief, SDUP (PC Hardware, GPUs & Gaming)
Nvidia Quantum-X800 InfiniBand Architecture Doubles AI Cluster Interconnect Throughput
Nvidia Quantum-X800 InfiniBand Architecture Doubles AI Cluster Interconnect Throughput — Editorial Visual / Silicon Dispatch US
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Nvidia rolls out 800Gb/s Quantum-X800 InfiniBand switches and ConnectX-8 SuperNICs, delivering end-to-end telemetry and in-network computing for 100k-GPU superclusters.

Network Architecture: Nvidia’s Quantum-X800 network platform doubles end-to-end data transfer throughput to 800Gbps per port, mitigating communication overhead across massive tens-of-thousands GPU training runs.

SHARPv4 In-Network Computing

Scalable Hierarchical Aggregation and Reduction Protocol (SHARP) processes collective AI reduction operations directly inside the switch ASICs, eliminating redundant round-trip host CPU traffic.

Adaptive Routing & Congestion Control

Hardware-level telemetry monitors buffer queue depths in real time, re-routing micro-burst packets across alternate fabric paths to prevent network head-of-line blocking.

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