Flopper.io GPU Specification Sheet
October 17, 2026
flopper.io/gpu/amd-mi250x-128gbAMD MI250X 128GB
CDNA 2 OAM 2021 6nm
Overview
47.9
FP32 TFLOPS
128 GB
Memory
3.3 TB/s
Memory Bandwidth
560 W
TDP
Performance Metrics
| Precision | Peak (dense) | Bits | Type |
|---|---|---|---|
| FP64 | 47.9 | 64 | Standard |
| FP32 | 47.9 | 32 | Standard |
| TF32 | — | — | Standard |
| BF16 | 383.0 | 16 | Standard |
| FP16 | 383.0 | 16 | Standard |
| FP8 | — | — | Standard |
| FP6 | — | — | Standard |
| FP4 | — | — | Standard |
| INT8 | 383.0 | 8 | Standard |
| INT4 | 383.0 | 4 | Standard |
Memory Specifications
- Capacity
- 128 GB
- Type
- —
- Bandwidth
- 3.3 TB/s
- Interface Width
- —
Power & Efficiency
- TDP
- 560 W
- Max power (Flopper estimate)
- ~644 W est.
- FP32 dense TFLOPS per W of TDP
- 0.09 TFLOPS/W
- FP16 dense TFLOPS per W of TDP
- 0.68 TFLOPS/W
Flopper estimate: 560 W TDP x 1.15. The vendor publishes no maximum board power for this part. Per W of TDP figures divide dense peak by accelerator TDP. Board power only: excludes host CPUs, networking, cooling and facility overhead.
Hardware Details
Vendor: AMD
Architecture: CDNA 2
Process Node: 6nm
Form Factor: OAM
Launch Year: 2021
Variant: 128GB
Enterprise Features
Sparsity: No