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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

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SpecAWS Trainium2SambaNova SN40L Reconfigurable Dataflow Unit
Bf16 Tflops PER Chip667—
Bf16 Tflops PER Socket—638
Chips PER Trn2 Instance16—
Chips PER Ultraserver64—
Current Family Listed—SN50, SN40
DDR Bandwidth GB S—200
Ddr5 Capacity TB—1.5
FP8 Dense Petaflops PER Chip1.3—
FP8 Sparse Petaflops PER Chip5.2—
HBM Bandwidth TB S—1.8
HBM Bandwidth TB S PER Chip2.9—
HBM Capacity GB PER Chip96—
HBM TypeHBM3—
Hbm3 Capacity GB—64
Neuroncores PER Chip8—
ON Chip Sram MB—520
Packaging—3x CoWoS-S, 2 accelerator dies
Pattern Compute Units—1,040
Process Node—TSMC 5nm
Status Checked—2026-09-24
Successor—SN50 (fifth-generation RDU)
Successor Introduced—2026-02-24
Trainium3 GA2025-12-02—
Trainium3 HBM Bandwidth TB S4.9—
Trainium3 Hbm3e GB PER Chip144—
Trn2 Instance FP8 Petaflops20.8—
Trn2 Instance HBM TB1.5—
Trn3 Ultraserver FP8 Pflops362—
Trn3 Ultraserver MAX Chips144—
Ultraserver FP8 Petaflops83.2—
Ultraserver Total HBM Bandwidth TB S185—
Ultraserver Total HBM TB6—