tech
December 6, 2025
Amazon releases an impressive new AI chip and teases an Nvidia-friendly roadmap
AWS has been building its own AI chips — and systems — for years now. It just released its third version, known as Trainium3, with some impressive specs.
TL;DR
- AWS launched Trainium3, a new AI training chip and UltraServer system at AWS re:Invent 2025.
- Trainium3 offers more than 4x speed and memory compared to the previous generation for AI training and inference.
- The new systems are 40% more energy efficient.
- Thousands of UltraServers can be linked, supporting up to 1 million Trainium3 chips.
- AWS previewed Trainium4, which will support Nvidia's NVLink Fusion for interoperability.
- Existing AWS customers like Anthropic have already seen significant cost reductions using Trainium3.
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