Chip comparison
AMD Instinct MI250X vs NVIDIA B100 (Blackwell)
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 MI250X | NVIDIA B100 (Blackwell) |
|---|---|---|
| Process node | TSMC N6 | TSMC 4NP |
| TDP | 560 W | 700 W |
| Memory | 128 GB HBM2e | 192 GB HBM3e |
| Memory bandwidth | 3,200 GB/s | 8,000 GB/s |
| FP16 (dense) | 383 TFLOPS | 1,750 TFLOPS |
| BF16 (dense) | 383 TFLOPS | 1,750 TFLOPS |
| FP8 (dense) | — | 3,500 TFLOPS |
| INT8 (dense) | 383 TOPS | — |
| Form factor | OAM | SXM6 (700 W envelope) |
| Announced | 2021-11-08 | 2024-03-18 |
| Released | 2022-06-01 | 2024-11-01 |
Robots running AMD Instinct MI250X
No robots publicly running it yet.
Robots running NVIDIA B100 (Blackwell)
No robots publicly running it yet.
Data centers with AMD Instinct MI250X
No data centers publicly running it yet.
Data centers with NVIDIA B100 (Blackwell)
No data centers publicly running it yet.
Common questions
AMD Instinct MI250X vs NVIDIA B100 (Blackwell): which is faster for training?
NVIDIA B100 (Blackwell) has 9.14x the dense FP16/BF16 throughput of the other (AMD Instinct MI250X: 383 TFLOPS; NVIDIA B100 (Blackwell): 3,500 TFLOPS). Real-world training speed also depends on memory bandwidth, interconnect, and software stack: see the spec diff for those inputs.
AMD Instinct MI250X vs NVIDIA B100 (Blackwell): which has more memory?
NVIDIA B100 (Blackwell) carries more HBM (AMD Instinct MI250X: 128 GB HBM2e; NVIDIA B100 (Blackwell): 192 GB HBM3e). Memory capacity sets the largest model that fits on one chip without partitioning; memory bandwidth sets inference throughput.
AMD Instinct MI250X vs NVIDIA B100 (Blackwell): which is more power-efficient?
Dense FP16/BF16 TFLOPS per watt: AMD Instinct MI250X 0.68 (383 ÷ 560 W); NVIDIA B100 (Blackwell) 5.00 (3,500 ÷ 700 W). NVIDIA B100 (Blackwell) wins at the die level; system-level efficiency also depends on cooling and interconnect.
See also: every chip comparison · AMD Instinct MI250X full page · NVIDIA B100 (Blackwell) full page.