Pyyan / Compare / Trainium 3 vs MI400
Trainium 3 vs MI400
2 of 5GPU & AI Chips · verified 13 Aug 2026
Trainium 3AWScurrentMI400AMDcurrent
| Specification | Trainium 3 | MI400 |
|---|---|---|
| Summary | 30–40% better price-performance. | Double NVIDIA's memory capacity. |
| Memory | 144GB HBM3e | 432GB HBM4 |
| Bandwidth | — | 19.6 TB/s |
| Vendor | AWS | AMD |
| Category | GPU & AI Chips | GPU & AI Chips |
| Official | AWS ↗ | AMD ↗ |
Highlighted rows are where these differ.
MI400
- 19.6 TB/s bandwidth
- 40 PFLOPS FP4
- $7.2B in commitments
Best for large-model inference.