Pyyan / Compare / B300 Blackwell Ultra vs Trainium 3
B300 Blackwell Ultra vs Trainium 3
2 of 5GPU & AI Chips · verified 13 Aug 2026
B300 Blackwell UltraNVIDIAcurrent
Trainium 3AWScurrent| Specification | B300 Blackwell Ultra | Trainium 3 |
|---|---|---|
| Summary | 15 PFLOPS dense FP4. | 30–40% better price-performance. |
| Memory | 288GB HBM3e | 144GB HBM3e |
| Bandwidth | 8 TB/s | — |
| Price | ~$40–50K (verify) | — |
| Vendor | NVIDIA | AWS |
| Category | GPU & AI Chips | GPU & AI Chips |
| Official | NVIDIA ↗ | AWS ↗ |
Highlighted rows are where these differ.
B300 Blackwell Ultra
- 8 TB/s memory bandwidth
- Per-GPU pricing widely misquoted — one source cites rack pricing
Best for frontier training.