Chip comparison
AMD Instinct MI250X vs AMD Instinct MI300X
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 | AMD Instinct MI300X |
|---|---|---|
| Process node | TSMC N6 | TSMC N5 + N6 (chiplet) |
| Transistors (B) | — | 153 |
| TDP | 560 W | 750 W |
| Memory | 128 GB HBM2e | 192 GB HBM3 |
| Memory bandwidth | 3,200 GB/s | 5,300 GB/s |
| FP16 (dense) | 383 TFLOPS | 1,307 TFLOPS |
| BF16 (dense) | 383 TFLOPS | 1,307 TFLOPS |
| FP8 (dense) | — | 2,614 TFLOPS |
| INT8 (dense) | 383 TOPS | 2,614 TOPS |
| Launch price (list) | — | $15,000 |
| Form factor | OAM | OAM |
| Announced | 2021-11-08 | 2023-12-06 |
| Released | 2022-06-01 | 2024-01-01 |
Robots running AMD Instinct MI250X
No robots publicly running it yet.
Robots running AMD Instinct MI300X
No robots publicly running it yet.
Data centers with AMD Instinct MI250X
No data centers publicly running it yet.
Data centers with AMD Instinct MI300X
No data centers publicly running it yet.
Common questions
AMD Instinct MI250X vs AMD Instinct MI300X: which is faster for training?
AMD Instinct MI300X has 6.83x the dense FP16/BF16 throughput of the other (AMD Instinct MI250X: 383 TFLOPS; AMD Instinct MI300X: 2,614 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 AMD Instinct MI300X: which has more memory?
AMD Instinct MI300X carries more HBM (AMD Instinct MI250X: 128 GB HBM2e; AMD Instinct MI300X: 192 GB HBM3). Memory capacity sets the largest model that fits on one chip without partitioning; memory bandwidth sets inference throughput.
AMD Instinct MI250X vs AMD Instinct MI300X: which is more power-efficient?
Dense FP16/BF16 TFLOPS per watt: AMD Instinct MI250X 0.68 (383 ÷ 560 W); AMD Instinct MI300X 3.49 (2,614 ÷ 750 W). AMD Instinct MI300X wins at the die level; system-level efficiency also depends on cooling and interconnect.
See also: every chip comparison · AMD Instinct MI250X full page · AMD Instinct MI300X full page.