The Definitive Guide toAI Data Centers
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MXFP8 per Trainium3 chip; 144 GB HBM3E at 4.9 TB/s; first 3nm AWS accelerator

2.52 PFLOPSobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeAWS-published peak per-chip specification, rounded to 2.52 PFLOPS; Neuron architecture documentation gives 2,517 MXFP8/MXFP4 TFLOPS. AWS's up-to-4x performance-per-watt comparison is at Trn3 UltraServer versus Trn2 UltraServer level, not per chip, and is an AWS claim rather than a measured workload gain.
As of2025-12
SourceAWS Trainium3 launch announcement (2025-12-02)
Reviewchecking…review by 2027-01-31 · standard cadence
Recorded changeslast 2026-10-15 · 3 revisions tracked
Claim idfp8-per-trainium3-chip-144-gb-hbm3e-4-9-tb-s

Where the guide uses it

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