Live DB — analyst tables
Test
Microsoft 65536 B300 CX-8 Hyperscaler Infiniband Cluster Configuration
MSFT-B300-CX8-IB-NV-DEF
Microsoft · B300 · CX-8
Rack type
NVL8
Cluster / location
All Other Clusters
Buyer profile
Hyperscaler
Networking type
Infiniband
Number of XPUs
65,536
NIC used
CX-8
NICs / XPU
1
Scale-out BW / XPU
800G
XPU / server
8
Scale-up network
1 rows
Assigned blockDefault
B300 - NVL8
Scale-UpXPU: B300 NVL81 lineshared by 5 SKUs
Scale-Up Parts Summary
1
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Nvidia NVSwitch 5.0 (NVLink 5) | 16,384 | 2.00 | 0.25 |
Backend network
5 rows
Assigned blockDefault
B300 - NVL8 - CX8 - 3L - IB - X800-Q3400-RA - MSFT
BackendXPU: B300 NVL85 linesshared by 1 SKU
Backend Parts Summary
5
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Generic 800G DR4 | 65,536 | 8.00 | 1.00 |
| Generic 800G DR4 Single Mode | 196,720 | 24.01 | 3.00 |
| Generic 1.6T DR8 (SiPho) | 164,016 | 20.02 | 2.50 |
| ConnectX-8 NIC - 800G | 65,536 | 8.00 | 1.00 |
| Quantum-X800-Q3400-RA (Air Cooled) | 2,278 | 0.28 | 0.03 |
Frontend network
11 rows
Assigned blockDefault
B300 - NVL8 - SN5600 - Generic
FrontendXPU: B300 NVL811 linesshared by 3 SKUs
Frontend Parts Summary
11
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Spectrum-4 51.2T (SN5600) | 787 | 0 | 0.0120 |
| Spectrum-3 12.8T (SN4700) | 3 | 0 | 0.0001 |
| Spectrum-2 6.4T (SN3700) | 117 | 0 | 0.0018 |
| Spectrum-2 1GbE (SN2201) | 962 | 0 | 0.0147 |
| Nvidia LinkX 800G SR8 | 38,057 | 5 | 0.5807 |
| Nvidia LinkX 400G SR4 | 37,859 | 5 | 0.5777 |
| Nvidia LinkX 100G SR4 QSFP28 | 16,800 | 2 | 0.2563 |
| Nvidia LinkX 800G Multimode | 52,084 | 6 | 0.7947 |
| Nvidia LinkX 400G Multimode | 267 | 0 | 0.0041 |
| Nvidia LinkX 100G Multimode | 7,483 | 1 | 0.1142 |
| RJ45 Cables | 46,187 | 6 | 0.7048 |
Compute Tray Networking Content
1 rows
Assigned blockDefault
B300 - NVL8 - Generic
Compute TrayXPU: B300 NVL81 lineshared by 4 SKUs
Compute Tray Parts Summary
1
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| NV DensiLink OverPass to OSFP Cage | 65,536 | 8.00 | 1.00 |
2026 share
Nvidia NVSwitch 5.0 (NVLink 5)Σ 100%
%
| Item | Unit Cost | Quantity | Quantity (per Server) | Quantity (per XPU) | Extended Price for Cluster | Extended Price per Server | Power (W) per Unit | Extended Power (W) per Cluster | Extended Power (W) per Server | Device Type | Hyperscaler | Vendor | Manufacturer | Component | Speed | SerDes Speed | Protocol | Technology | XPU | Network | Tab Name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Per-server cost: $6,400.00 | |||||||||||||||||||||
| $3,200.00 | 16,384 | 2.00 | 0.25 | $52,428,800.00 | $6,400.00 | 407 W | 6,674,842 W | 815 W | Scale-Up Switch | Microsoft | Nvidia | — | Device Level | — | — | NVLink | — | B300 | Scale-Up | MSFT-B300-CX8-IB-NV-DEF | |
Per-server cost: $56,004.51 | |||||||||||||||||||||
| $650.00 | 65,536 | 8.00 | 1.00 | $42,598,400.00 | $5,200.00 | 17 W | 1,114,112 W | 136 W | Transceiver | Microsoft | AAOI | — | Device Level | — | 224G | Ethernet | Fully Retimed | B300 | Backend | MSFT-B300-CX8-IB-NV-DEF | |
| $130.00 | 196,720 | 24.01 | 3.00 | $25,573,600.00 | $3,121.78 | 0 W | 0 W | 0 W | Fiber | Microsoft | Corning | — | Device Level | — | — | — | — | B300 | Backend | MSFT-B300-CX8-IB-NV-DEF | |
| $810.00 | 164,016 | 20.02 | 2.50 | $132,852,960.00 | $16,217.40 | 22 W | 3,608,352 W | 440 W | Transceiver | Microsoft | AAOI | — | Device Level | — | 224G | Ethernet | Fully Retimed | B300 | Backend | MSFT-B300-CX8-IB-NV-DEF | |
| $1,500.00 | 65,536 | 8.00 | 1.00 | $98,304,000.00 | $12,000.00 | 75 W | 4,915,200 W | 600 W | NIC | Microsoft | Nvidia | — | Device Level | — | — | — | — | B300 | Backend | MSFT-B300-CX8-IB-NV-DEF | |
| $70,000.00 | 2,278 | 0.28 | 0.03 | $159,460,000.00 | $19,465.33 | 2,800 W | 6,378,400 W | 779 W | Switch | Microsoft | Nvidia | — | Device Level | — | — | — | — | B300 | Backend | MSFT-B300-CX8-IB-NV-DEF | |
Per-server cost: $13,619.76 | |||||||||||||||||||||
| $23,000.00 | 787 | 0.10 | 0.01 | $18,093,917.45 | $2,208.73 | 950 W | 747,357 W | 91 W | Switch | Microsoft | Nvidia | — | Device Level | — | — | Ethernet | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $21,600.00 | 3 | 0.00 | 0.00 | $70,217.15 | $8.57 | 630 W | 2,048 W | 0 W | Switch | Microsoft | Nvidia | — | Device Level | — | — | Ethernet | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $13,273.51 | 117 | 0.01 | 0.00 | $1,553,379.49 | $189.62 | 250 W | 29,257 W | 4 W | Switch | Microsoft | Nvidia | — | Device Level | — | — | Ethernet | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $2,400.00 | 962 | 0.12 | 0.01 | $2,309,363.81 | $281.90 | 150 W | 144,335 W | 18 W | Switch | Microsoft | Nvidia | — | Device Level | — | — | Ethernet | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $930.23 | 38,057 | 4.65 | 0.58 | $35,401,898.85 | $4,321.52 | 14 W | 532,799 W | 65 W | Transceiver | Microsoft | Nvidia | Coherent, Eoptolink, Innolight, Mellanox | White Label | — | 112G | InfiniBand | Fully Retimed | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $575.00 | 37,859 | 4.62 | 0.58 | $21,768,777.14 | $2,657.32 | 9 W | 340,729 W | 42 W | Transceiver | Microsoft | Nvidia | Coherent, Innolight, Mellanox | White Label | — | 112G | InfiniBand | Fully Retimed | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $123.74 | 16,800 | 2.05 | 0.26 | $2,078,906.51 | $253.77 | 3 W | 50,400 W | 6 W | Transceiver | Microsoft | Nvidia | Mellanox, Others | White Label | — | 28G | InfiniBand | Fully Retimed | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $525.00 | 52,084 | 6.36 | 0.79 | $27,344,213.33 | $3,337.92 | 0 W | 0 W | 0 W | Fiber | Microsoft | Others | — | White Label | — | — | — | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $375.00 | 267 | 0.03 | 0.00 | $99,961.90 | $12.20 | 0 W | 0 W | 0 W | Fiber | Microsoft | Others | — | White Label | — | — | — | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $375.00 | 7,483 | 0.91 | 0.11 | $2,806,247.62 | $342.56 | 0 W | 0 W | 0 W | Fiber | Microsoft | Others | — | White Label | — | — | — | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
| $1.00 | 46,187 | 5.64 | 0.70 | $46,187.28 | $5.64 | 0 W | 0 W | 0 W | Cable | Microsoft | Amphenol | — | Device Level | — | — | — | — | B300 | Frontend | MSFT-B300-CX8-IB-NV-DEF | |
Per-server cost: $300.00 | |||||||||||||||||||||
| $37.50 | 65,536 | 8.00 | 1.00 | $2,457,600.00 | $300.00 | 0 W | 0 W | 0 W | Cable | Microsoft | Amphenol | Amphenol | White Label | — | — | — | — | B300 | Compute Tray | MSFT-B300-CX8-IB-NV-DEF | |
| By fabric | |||||||||||||||||||||
| Total Scale-Up | $52,428,800.00 | $6,400.00 | 6,674,842 W | 815 W | |||||||||||||||||
| Total Backend | $458,788,960.00 | $56,004.51 | 16,016,064 W | 1,955 W | |||||||||||||||||
| Total Frontend | $111,573,070.54 | $13,619.76 | 1,846,925 W | 225 W | |||||||||||||||||
| Total Compute Tray | $2,457,600.00 | $300.00 | 0 W | 0 W | |||||||||||||||||
| Grand Total Cluster Networking | $625,248,430.54 | $76,324.27 | 24,537,831 W | 2,995 W | |||||||||||||||||
| By component | |||||||||||||||||||||
| Total Transceivers | $234,700,942.51 | $28,650.02 | 5,646,392 W | 689 W | |||||||||||||||||
| Total Switches | $181,486,877.90 | $22,154.16 | 7,301,398 W | 891 W | |||||||||||||||||
| Total Fiber | $55,824,022.86 | $6,814.46 | 0 W | 0 W | |||||||||||||||||
| Total Cables | $2,503,787.28 | $305.64 | 0 W | 0 W | |||||||||||||||||
| Total Connectors | — | — | — | — | |||||||||||||||||
| Total NICs | $98,304,000.00 | $12,000.00 | 4,915,200 W | 600 W | |||||||||||||||||