MQM8790-HS2F - Nvidia Mellanox

The NVIDIA Mellanox MQM8790-HS2F is a high-performance Quantum™ HDR InfiniBand switch designed for data centres, high-performance computing (HPC), and AI workloads. It delivers exceptional throughput, ultra-low latency, and advanced in-network computing capabilities.

Key Specifications

• Ports: 40 × QSFP56 supporting HDR 200Gb/s
  (or 80 × HDR100 100Gb/s using splitter cables)

• Switching Capacity: 16 Tb/s non-blocking

• Latency: Sub-130ns port-to-port

• Packet Rate: 7.2 billion packets per second (Bpps), or 390 million pps per port

• Form Factor: 1U rack-mountable

• CPU: x86 ComEx Broadwell D-1508

• System Memory: 8GB

• Power Consumption: 253W (typical)

• Cooling: Back-to-front airflow (P2C) with hot-swappable fans

• Power Supplies: 1+1 redundant, hot-swappable AC units

• Management: Unmanaged model; includes onboard subnet manager supporting up to 2048 nodes

• Software: MLNX-OS

• Dimensions: 1.7" (H) × 17" (W) × 23.2" (D)

Performance Features

• In-Network Computing: Supports NVIDIA SHARP™ technology for accelerating collective communication operations like MPI and SHMEM by processing data within the network fabric.

• Advanced Routing: Features adaptive and static routing, congestion control, and enhanced VL mapping to support modern topologies such as SlimFly, Dragonfly+, and 6D Torus.

• HDR100 Support: Compatible with HDR100 mode when used with Mellanox ConnectX-6 adapters, allowing each 200Gb/s port to be split into two 100Gb/s ports.