AWS What's New: EC2 Trn3 UltraServers GA (Trainium3)

Fields

id

sources/aws-trn3-ultraservers-whats-new-dec2025

URL

https://aws.amazon.com/about-aws/whats-new/2025/12/amazon-ec2-trn3-ultraservers/

Publisher

AWS

Kind

blog

Accessed

2026-10-15

notes

GA announcement for Trn3 UltraServers (Dec 2 2025). Per-chip: 2.52 PF FP8, 144 GB HBM3e, 4.9 TB/s. Vendor-relative claims: Trn3 delivers up to 4.4x higher performance / 4x better perf-per-watt vs Trn2 UltraServer; on Bedrock Trainium3 is 'up to 3x faster than Trainium2 with over 5x higher output tokens per megawatt at similar latency per user'. Ratios, not absolute tok/s.

Notes

GA announcement for Trn3 UltraServers (Dec 2 2025). Per-chip: 2.52 PF FP8, 144 GB HBM3e, 4.9 TB/s. Vendor-relative claims: Trn3 delivers up to 4.4x higher performance / 4x better perf-per-watt vs Trn2 UltraServer; on Bedrock Trainium3 is 'up to 3x faster than Trainium2 with over 5x higher output tokens per megawatt at similar latency per user'. Ratios, not absolute tok/s.

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