NVIDIA ConnectX-8 XDR 800Gb/s InfiniBand SuperNIC
100 GB/s
Fields
id
interconnect/nic-connectx8-xdr-800gbpsKind
infiniband
Version
XDR (5th generation InfiniBand), 200 Gb/s per lane
Bandwidth (GB/s, per link, unidirectional)
100
Bandwidth basis
PER LANE, PER DIRECTION. XDR is 800 Gb/s per port per direction = 100 GB/s per port per direction. XDR uses 4 lanes at 200 Gb/s each. This is the per-lane rate, consistent with the repo's convention.
Link count
4
Topology
Switched fat-tree or Dragonfly+ via Quantum-X800 switches. ConnectX-8 is the SuperNIC endpoint.
Scale-up
no
Scale-out
yes
Switching
Quantum-X800 switches provide 144 ports of 800 Gb/s per switch. SHARP v4 in-network reduction, adaptive routing, telemetry-based congestion control.
notes
ConnectX-8 is the current shipping XDR 800Gb/s InfiniBand SuperNIC, part of the Quantum-X800 platform. Product page states 'up to 800 gigabits per second (Gb/s) of data throughput with support for NVIDIA In-Network Computing acceleration engines.' The Quantum-X800 platform claims 2x higher bandwidth, 5x data throughput, and 9x in-network computing vs the previous generation (vendor claims). ConnectX-9 (next generation) delivers up to 1.6 Tb/s. The ConnectX-8 doubles the per-port bandwidth over ConnectX-7 while maintaining the same 4-lane port architecture at 200 Gb/s per lane.
way
each
Notes
ConnectX-8 is the current shipping XDR 800Gb/s InfiniBand SuperNIC, part of the Quantum-X800 platform. Product page states 'up to 800 gigabits per second (Gb/s) of data throughput with support for NVIDIA In-Network Computing acceleration engines.' The Quantum-X800 platform claims 2x higher bandwidth, 5x data throughput, and 9x in-network computing vs the previous generation (vendor claims). ConnectX-9 (next generation) delivers up to 1.6 Tb/s. The ConnectX-8 doubles the per-port bandwidth over ConnectX-7 while maintaining the same 4-lane port architecture at 200 Gb/s per lane.
Cross-references
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