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Amazon 131072 Teton3 Max Nitro-v6 Hyperscaler EFA Cluster Configuration

AWS-Teton3 MAX-320L Switch Tray

Amazon · Trainium3 · Nitro-v6

Rack type
Teton3 Max
Cluster / location
Teton3 Max Clusters
Buyer profile
Hyperscaler
Networking type
EFA
Number of XPUs
131,072
NIC used
Nitro-v6
NICs / XPU
0.5
Scale-out BW / XPU
200G
XPU / server
144

Scale-up network

1 rows
Assigned blockDefault
Trainium3 - Teton3 Max - AWS
Scale-UpXPU: Trainium3 Teton3 Max1 lineshared by 1 SKU

Scale-up Units are based on the scale-up world size (144 XPUs).

XPU World Size

2
WS
Scale-Up Network LayerPart / Model
Units#
Unit BWGbit/s uni-d
Lane Count#
Lane BWGbit/s uni-d
XPUs per Node·4···
Scale-Up World Size·144···

Switches

4
SW
Scale-Up Network LayerPart / Model
Units#
Unit BWGbit/s uni-d
Lane Count#
Lane BWGbit/s uni-d
per SwitchAstera Labs Scorpio X 320-lane PCIe Gen 6.0110,24016064
per SwitchAstera Labs Scorpio-P 32-Lane PCIe Gen 6.012,0483264
Scale-Up Switch TotalAstera Labs Scorpio X 320-lane PCIe Gen 6.04010,240··
Scale-Up Switch TotalAstera Labs Scorpio-P 32-Lane PCIe Gen 6.0288···

PCIe Lane Math

PCIe Lane Math
18

PCIe lane accounting for the Trainium scale-up domain. Values behave like spreadsheet cells: type = to start a formula, then click other Value cells to link them (hard-coded values read blue, pure cell links read white).

SectionMetric
Value#
Note
·Lanes per Connector pair160·
·Total Lanes per Switch320>> Only 288 Lanes Utilized per Switch
·Redundant Lanes32·
·Switch Tray Paladin Units per Chip2·
·DP per Connector pair80·
·DP per Lane2·
·Lanes per Connector pair40·
·Backplane Lanes per Chip64·
·Spare Lanes16·
·XPU Strada Whisper Units per Chip2·
(a)Number of Chips144·
·AEC Lanes per Chip32·
·Lanes per AEC16·
·AEC Units per (a)144·
·Backplane Lanes64·
·AEC Lanes32·
·PCB Lanes64·
·Total Lanes per Trainium160·

Scale-Up Parts Summary

1
ItemQty/ClusterQty/ServerAttach/XPU
Astera Labs Scorpio X 320-lane PCIe Gen 6.036,40940.000.28

Frontend network

No converged frontend + storage fabric data for this cluster.

Frontend Parts Summary

0
ItemQty/ClusterQty/ServerAttach/XPU

Compute Tray Networking Content

3 rows

Networking components inside the compute tray — accelerators, board-to-board connectors, retimers, and their per-tray bandwidth.

Assigned blockDefault
Trainium3 - Teton3 Max - AWS
Compute TrayXPU: Trainium3 Teton3 Max3 linesshared by 3 SKUs
Tray layerPart / ModelUnits per Tray
Unit BWGb/s
Lanes
Lane BWGb/s
Per switch
XPUs per TrayTrainium34···4
To Front End CPU (PCIe 5.0)Astera Labs Scorpio-P 32-Lane PCIe Gen 6.02···2
To Front End CPU (PCIe 5.0)Aries PG6032 16L/32L Gearbox2···2
·Aries PCIe 6.0 x16 Retimer4···4

Compute Tray Parts Summary

3
ItemQty/ClusterQty/ServerAttach/XPU
Astera Labs Scorpio-P 32-Lane PCIe Gen 6.065,53672.000.50
Aries PG6032 16L/32L Gearbox65,53672.000.50
Aries PCIe 6.0 x16 Retimer131,072144.001.00