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Default Hyperscaler 18432 R200 HGX CX-9 Hyperscaler Infiniband Cluster Configuration
HS-R200-IB-8R
Default Hyperscaler · R200 · CX-9
Rack type
HGX NVL8
Cluster / location
Default R200 HGX
Buyer profile
Hyperscaler
Networking type
Infiniband
Number of XPUs
18,432
NIC used
CX-9
NICs / XPU
1
Scale-out BW / XPU
800G
XPU / server
8
Scale-up network
1 rows
Assigned blockDefault
R200 - HGX NVL8
Scale-UpXPU: R200 HGX NVL81 lineshared by 4 SKUs
Scale-up Units are based on the scale-up world size (8 XPUs).
XPU World Size
2
WS| Scale-Up Network Layer | Part / Model | Units# | Unit BWGbit/s uni-d | Port Count# | Port BWGbit/s uni-d |
|---|---|---|---|---|---|
| XPUs per Node | · | 8 | 14,400 | 18 | 800 |
| Scale-Up World Size | · | 8 | 115,200 | · | · |
Switches
2
SW| Scale-Up Network Layer | Part / Model | Units# | Unit BWGbit/s uni-d | Port Count# | Port BWGbit/s uni-d |
|---|---|---|---|---|---|
| per Switch | Nvidia NVSwitch 6.0 (NVLink 6) | 1 | 28,800 | 72 | 400 |
| Scale-Up Switch Total | Nvidia NVSwitch 6.0 (NVLink 6) | 4 | 115,200 | 72 | · |
Scale-Up Parts Summary
1
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Nvidia NVSwitch 6.0 (NVLink 6) | 9,216 | 4.00 | 0.50 |
Backend network
5 rows
Assigned blockDefault
R200 - HGX NVL8 - CX9 - 3L - IB - X800-Q3400-RA - Generic
BackendXPU: R200 HGX NVL85 linesshared by 2 SKUs
Backend Units are based on the cluster size (18,432 XPUs).
Switches
5
SW Network Layer | Switch and Server Spec | Aggregate Port Utilization | Network Bandwidth Aggregate | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SwitchPart Name / Model | Units# | Unit BWGbit/s | Port BWGbit/s | Downlink Ports / SW# | Uplink Ports / SW# | Max Ports# | Downlink Ports# | Uplink Ports# | Total Ports# | Downlink BWTbit/s | Uplink BWTbit/s | OversubRatio | |
| XPUs | · | 18,432 | 800 | 800 | 0 | 18,432 | 18,432 | 0 | 18,432 | 18,432 | 0 | 14,745.6 | · |
| NICs per Node | ConnectX-9 NIC - 800G | 8 | 800 | 200 | · | · | 4 | · | · | · | · | · | · |
| Leaf | Quantum-X800-Q3400-RA (Air Cooled) | 256 | 115,200 | 800 | 72 | 72 | 144 | 18,432 | 18,432 | 36,864 | 14,745.6 | 14,745.6 | 1 |
| Spine | Quantum-X800-Q3400-RA (Air Cooled) | 256 | 115,200 | 800 | 72 | 72 | 144 | 18,432 | 18,432 | 36,864 | 14,745.6 | 14,745.6 | 1 |
| Core | Quantum-X800-Q3400-RA (Air Cooled) | 128 | 115,200 | 800 | 144 | · | 144 | 18,432 | 0 | 18,432 | 14,745.6 | 0 | · |
Transceivers
6
CN Network Layer | Transceiver / CablePart Name / Model | Total Units# | Units per SW/GPU# | Unit BWGbit/s | Lanes# | BW per LaneGbit/s | Agg. BWTbit/s |
|---|---|---|---|---|---|---|---|
| XPU Nodes | Nvidia LinkX 800G DR4 | 18,432 | 18,432 | 800 | 4 | 200 | 14,745.6 |
| Leaf | |||||||
| Downlink | Nvidia LinkX 1.6T DR8 (SiPho) | 9,216 | 36 | 1,600 | 8 | 200 | 14,745.6 |
| Uplink | Nvidia LinkX 1.6T DR8 (SiPho) | 9,216 | 36 | 1,600 | 8 | 200 | 14,745.6 |
| Spine | |||||||
| Downlink | Nvidia LinkX 1.6T DR8 (SiPho) | 9,216 | 36 | 1,600 | 8 | 200 | 14,745.6 |
| Uplink | Nvidia LinkX 1.6T DR8 (SiPho) | 9,216 | 36 | 1,600 | 8 | 200 | 14,745.6 |
| Core | |||||||
| Downlink | Nvidia LinkX 1.6T DR8 (SiPho) | 9,216 | 72 | 1,600 | 8 | 200 | 14,745.6 |
| Uplink | · | · | · | · | · | · | · |
| Super-Core | |||||||
Cables
6
CB Network Layer | Cable/ FiberType | Total Units# | Units per Transceiver# | Unit BWGbit/s | Lane Count# | SerDes BWGbit/s |
|---|---|---|---|---|---|---|
| XPU Nodes | Nvidia LinkX 800G DR4 Single Mode | 18,432 | 1 | 800 | 4 | 200 |
| Leaf | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | Nvidia LinkX 800G DR4 Single Mode | 18,432 | 2 | 800 | 4 | 200 |
| Spine | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | Nvidia LinkX 800G DR4 Single Mode | 18,432 | 2 | 800 | 4 | 200 |
| Core | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | · | · | · | · | · | · |
| Super-Core | ||||||
Backend Parts Summary
5
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Nvidia LinkX 800G DR4 | 18,432 | 8.00 | 1.00 |
| Nvidia LinkX 800G DR4 Single Mode | 55,296 | 24.00 | 3.00 |
| Nvidia LinkX 1.6T DR8 (SiPho) | 46,080 | 20.00 | 2.50 |
| ConnectX-9 NIC - 800G | 18,432 | 8.00 | 1.00 |
| Quantum-X800-Q3400-RA (Air Cooled) | 640 | 0.28 | 0.03 |
Frontend network
11 rows
Assigned blockDefault
R200 - HGX NVL8 - SN6600 - Generic
FrontendXPU: R200 HGX NVL811 linesshared by 4 SKUs
Converged Frontend + Storage Fabric
11
| Layer | Part / Model | Units | Attach / XPU |
|---|---|---|---|
| · | Spectrum-6 102.4T x1600 (SN6600) | 221 | 0.0120 |
| · | Spectrum-4 25.6T (SN5400) | 1 | 0.0000 |
| · | Spectrum-3 12.8T (SN4700) | 33 | 0.0018 |
| · | Spectrum-2 1GbE (SN2201) | 271 | 0.0147 |
| · | Nvidia LinkX 1.6T DR8 (SiPho) | 10,704 | 0.5807 |
| · | Nvidia LinkX 800G DR4 | 10,648 | 0.5777 |
| · | Nvidia LinkX 200G SR4 | 4,725 | 0.2563 |
| · | Nvidia LinkX 800G Multimode | 14,649 | 0.7947 |
| · | Nvidia LinkX 400G Multimode | 75 | 0.0041 |
| · | Nvidia LinkX 200G Multimode | 2,105 | 0.1142 |
| · | RJ45 Cables | 12,990 | 0.7048 |
Frontend Parts Summary
11
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Spectrum-6 102.4T x1600 (SN6600) | 221 | 0 | 0.0120 |
| Spectrum-4 25.6T (SN5400) | 1 | 0 | 0.0001 |
| Spectrum-3 12.8T (SN4700) | 33 | 0 | 0.0018 |
| Spectrum-2 1GbE (SN2201) | 271 | 0 | 0.0147 |
| Nvidia LinkX 1.6T DR8 (SiPho) | 10,704 | 5 | 0.5807 |
| Nvidia LinkX 800G DR4 | 10,648 | 5 | 0.5777 |
| Nvidia LinkX 200G SR4 | 4,725 | 2 | 0.2563 |
| Nvidia LinkX 800G Multimode | 14,649 | 6 | 0.7947 |
| Nvidia LinkX 400G Multimode | 75 | 0 | 0.0041 |
| Nvidia LinkX 200G Multimode | 2,105 | 1 | 0.1142 |
| RJ45 Cables | 12,990 | 6 | 0.7048 |
Compute Tray Networking Content
4 rows
Networking components inside the compute tray — accelerators, board-to-board connectors, retimers, and their per-tray bandwidth.
Assigned blockDefault
R200 - HGX NVL8 - Generic
Compute TrayXPU: R200 HGX NVL84 linesshared by 4 SKUs
| Tray layer | Part / Model | Units per Tray | Unit BWGb/s | Lanes | Lane BWGb/s | Per switch |
|---|---|---|---|---|---|---|
| XPUs per Tray | Rubin 200 | 4 | · | · | · | · |
| PCIe 6.0 Connector (Male) | NV Paladin Board to Board 32 Pin 4p8c (Male) | 2 | 512 | · | · | · |
| PCIe 6.0 Connector (Male) | NV Paladin Board to Board 64 Pin 4p16c (Male) | 8 | 1,024 | · | · | · |
| PCIe 6.0 Connector (Female) | NV Paladin Board to Board 32 Pin 4p8c (Female) | 4 | 512 | · | · | · |
| PCIe 6.0 Connector (Female) | NV Paladin Board to Board 64 Pin 4p16c (Female) | 16 | 1,024 | · | · | · |
| PCIe 6.0 Connector (Male) | NV Paladin Board to Board 32 Pin 4p8c (Male) | 2 | 512 | · | · | · |
| PCIe 6.0 Connector (Male) | NV Paladin Board to Board 64 Pin 4p16c (Male) | 8 | 1,024 | · | · | · |
Notes
- PCIe 6.0 Connector (Male) · NV Paladin Board to Board 32 Pin 4p8c (Male) — 2 pins = 1DP
- PCIe 6.0 Connector (Male) · NV Paladin Board to Board 64 Pin 4p16c (Male) — 2DP = 1Lane
Compute Tray Parts Summary
4
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| NV Paladin Board to Board 32 Pin 4p8c (Male) | 18,432 | 8.00 | 1.00 |
| NV Paladin Board to Board 64 Pin 4p16c (Male) | 73,728 | 32.00 | 4.00 |
| NV Paladin Board to Board 32 Pin 4p8c (Female) | 18,432 | 8.00 | 1.00 |
| NV Paladin Board to Board 64 Pin 4p16c (Female) | 73,728 | 32.00 | 4.00 |