Chip comparison
AMD Instinct MI325X vs AWS Trainium 2
Side-by-side specs
Straight from each vendor's datasheet. Winner in bold: higher throughput, memory, or transistor count; lower power draw or price. Sparse (2:4) throughput roughly doubles the FP8/INT8 numbers shown.
| Field | AMD Instinct MI325X | AWS Trainium 2 |
|---|---|---|
| Process node | TSMC N5 + N6 (chiplet) | TSMC N5 |
| TDP | 1000 W | 500 W |
| Memory | 256 GB HBM3e | 96 GB HBM3 |
| Memory bandwidth | 6,000 GB/s | 2,900 GB/s |
| FP16 (dense) | 1,307 TFLOPS | — |
| BF16 (dense) | 1,307 TFLOPS | 667 TFLOPS |
| FP8 (dense) | 2,614 TFLOPS | 1,300 TFLOPS |
| INT8 (dense) | 2,614 TOPS | 1,300 TOPS |
| Form factor | OAM | AWS Neuron 2 (Trn2 UltraServer with 64 chips per unit) |
| Announced | 2024-10-10 | 2024-12-03 |
| Released | 2025-01-01 | 2025-01-01 |
Robots running AMD Instinct MI325X
No robots publicly running it yet.
Robots running AWS Trainium 2
No robots publicly running it yet.
Data centers with AMD Instinct MI325X
No data centers publicly running it yet.
Common questions
AMD Instinct MI325X vs AWS Trainium 2: which is faster for training?
AMD Instinct MI325X has 2.01x the dense FP8 throughput of the other (AMD Instinct MI325X: 2,614 TFLOPS; AWS Trainium 2: 1,300 TFLOPS). Real-world training speed also depends on memory bandwidth, interconnect, and software stack: see the spec diff for those inputs.
AMD Instinct MI325X vs AWS Trainium 2: which has more memory?
AMD Instinct MI325X carries more HBM (AMD Instinct MI325X: 256 GB HBM3e; AWS Trainium 2: 96 GB HBM3). Memory capacity sets the largest model that fits on one chip without partitioning; memory bandwidth sets inference throughput.
AMD Instinct MI325X vs AWS Trainium 2: which is more power-efficient?
Dense FP8 TFLOPS per watt: AMD Instinct MI325X 2.61 (2,614 ÷ 1000 W); AWS Trainium 2 2.60 (1,300 ÷ 500 W). AMD Instinct MI325X wins at the die level; system-level efficiency also depends on cooling and interconnect.
AMD Instinct MI325X vs AWS Trainium 2: which is more widely used?
AMD Instinct MI325X: 0 robots and 0 data centers publicly running it. AWS Trainium 2: 0 robots and 3 data centers. Empty here means no operator has said publicly, not zero adoption in the market.
See also: every chip comparison · AMD Instinct MI325X full page · AWS Trainium 2 full page.