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Amazon 131040 Trainium4 - UALink Nitro-v6 Hyperscaler EFA Cluster Configuration

AWS-Trn4 EFA-WB

Amazon · Trainium4 · Nitro-v6

Rack type
UALink
Cluster / location
Trainium4 - UALink
Buyer profile
Hyperscaler
Networking type
EFA
Number of XPUs
131,040
NIC used
Nitro-v6
NICs / XPU
1
Scale-out BW / XPU
800G
XPU / server
144

Scale-up network

5 rows
Assigned blockDefault
Trainium4 - UALink
Scale-UpXPU: Trainium4 UALink5 linesshared by 1 SKU

Scale-Up Parts Summary

5
ItemQty/ClusterQty/ServerAttach/XPU
Astera Labs UALink 57.6T Switch58,24064.000.44
Paladin HD2 224Gb/s 144 DP (Male)247,520272.001.89
Paladin HD2 224Gb/s 144 DP (Female)247,520272.001.89
112Gb/s SkewClear EXD Cable16,773,12018,432.00128.00
Teton4 Backplane Chassis1,8202.000.01

Backend network

5 rows
Assigned blockDefault
Trainium4 - UALink - Nitro - 3L - ETH - TH5 - AWS
BackendXPU: Trainium4 UALink5 linesshared by 1 SKU

Backend Parts Summary

5
ItemQty/ClusterQty/ServerAttach/XPU
Generic 800G AEC131,040144.001.00
Nitro-v7 800G NIC131,040144.001.00
Generic 800G DR8524,160576.004.00
Generic 800G Single Mode262,080288.002.00
WhiteBox Tomahawk 5 51.2T10,23811.250.08

Frontend network

Frontend Parts Summary

0
ItemQty/ClusterQty/ServerAttach/XPU

Compute Tray Networking Content

3 rows
Assigned blockDefault
Trainium4 - UALink - AWS
Compute TrayXPU: Trainium4 UALink3 linesshared by 1 SKU

Compute Tray Parts Summary

3
ItemQty/ClusterQty/ServerAttach/XPU
Astera Labs Scorpio-P 32-Lane PCIe Gen 6.0···
Aries PG6032 16L/32L Gearbox···
Aries PCIe 7.0 x16 Retimer···
2026 share
Astera Labs UALink 57.6T SwitchΣ 100%
%
Paladin HD2 224Gb/s 144 DP (Male)Σ 100%
%
Paladin HD2 224Gb/s 144 DP (Female)Σ 100%
%
112Gb/s SkewClear EXD CableΣ 100%
%
Teton4 Backplane ChassisΣ 100%
%
ItemUnit CostQuantityQuantity (per Server)Quantity (per XPU)Extended Price for ClusterExtended Price per ServerPower (W) per UnitExtended Power (W) per ClusterExtended Power (W) per ServerDevice TypeHyperscalerVendorManufacturerComponentSpeedSerDes SpeedProtocolTechnologyXPUNetworkTab Name
Per-server cost: $542,185.60
$7,000.0058,24064.000.44$407,680,000.00$448,000.00650 W37,856,000 W41,600 WScale-Up SwitchAmazonAsteraDevice LevelUALinkTrainium4Scale-UpAWS-Trn4 EFA-WB
$144.00247,520272.001.89$35,642,880.00$39,168.000 W0 W0 WBackplaneAmazonAmphenolDevice Level224GTrainium4Scale-UpAWS-Trn4 EFA-WB
$72.00247,520272.001.89$17,821,440.00$19,584.000 W0 W0 WBackplaneAmazonAmphenolDevice Level224GTrainium4Scale-UpAWS-Trn4 EFA-WB
$1.0016,773,12018,432.00128.00$16,773,120.00$18,432.000 W0 W0 WBackplaneAmazonAmphenolDevice Level224GTrainium4Scale-UpAWS-Trn4 EFA-WB
$8,500.801,8202.000.01$15,471,456.00$17,001.600 W0 W0 WBackplaneAmazonOthersDevice LevelTrainium4Scale-UpAWS-Trn4 EFA-WB
Per-server cost: $613,215.00
$350.00131,040144.001.00$45,864,000.00$50,400.0022 W2,935,296 W3,226 WAECAmazonAsteraDevice LevelTrainium4BackendAWS-Trn4 EFA-WB
$900.00131,0404.001.00$117,936,000.00$3,600.0075 W9,828,000 W300 WNICAmazonAmazonDevice LevelTrainium4BackendAWS-Trn4 EFA-WB
$500.00524,160576.004.00$262,080,000.00$288,000.0016 W8,386,560 W9,216 WTransceiverAmazonAAOIDevice Level112GEthernetFully RetimedTrainium4BackendAWS-Trn4 EFA-WB
$180.00262,080288.002.00$47,174,400.00$51,840.000 W0 W0 WFiberAmazonCorningDevice LevelTrainium4BackendAWS-Trn4 EFA-WB
$19,500.0010,23811.250.08$199,631,250.00$219,375.001,200 W12,285,000 W13,500 WSwitchAmazonAcctonDevice LevelTrainium4BackendAWS-Trn4 EFA-WB
Per-server cost: $0.00
$70.0080 WScale-Up SwitchAmazonAsteraDevice LevelPCIeTrainium4Compute TrayAWS-Trn4 EFA-WB
$20.003 WGearboxAmazonAsteraL1 AbstractionTrainium4Compute TrayAWS-Trn4 EFA-WB
$54.6911 WRetimerAmazonAsteraL1 AbstractionTrainium4Compute TrayAWS-Trn4 EFA-WB
By fabric
Total Scale-Up$493,388,896.00$542,185.6037,856,000 W41,600 W
Total Backend$672,685,650.00$613,215.0033,434,856 W26,242 W
Total Compute Tray
Grand Total Cluster Networking$1,166,074,546.00$1,155,400.6071,290,856 W67,842 W
By component
Total Transceivers$262,080,000.00$288,000.008,386,560 W9,216 W
Total Switches$199,631,250.00$219,375.0012,285,000 W13,500 W
Total Fiber$47,174,400.00$51,840.000 W0 W
Total Cables
Total Connectors
Total NICs$117,936,000.00$3,600.009,828,000 W300 W