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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.

0 of 31 fields comparable

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SpecAlibaba Qwen2.5-72B-Instruct (Q4 quant)AWS Trainium2
Bf16 Tflops PER Chip—667
Chips PER Trn2 Instance—16
Chips PER Ultraserver—64
Context Window Tokens K128—
Dual Card Count2—
Dual Card Vram GB24—
FP8 Dense Petaflops PER Chip—1.3
FP8 Sparse Petaflops PER Chip—5.2
GPT Version5—
HBM Bandwidth TB S PER Chip—2.9
HBM Capacity GB PER Chip—96
HBM Type—HBM3
Neuroncores PER Chip—8
Parameter Count B72—
Qwen Version3—
Qwen25 72B InstructQwen2.5-72B-Instruct—
Qwen25 Version2.5—
Qwen3 Largest Dense Checkpoint B32—
RTX 5090 Pairing Vram GB32—
Status Checked2026-09-24—
Trainium3 GA—2025-12-02
Trainium3 HBM Bandwidth TB S—4.9
Trainium3 Hbm3e GB PER Chip—144
Trn2 Instance FP8 Petaflops—20.8
Trn2 Instance HBM TB—1.5
Trn3 Ultraserver FP8 Pflops—362
Trn3 Ultraserver MAX Chips—144
Ultraserver FP8 Petaflops—83.2
Ultraserver Total HBM Bandwidth TB S—185
Ultraserver Total HBM TB—6
Vram Required GB44—