Instinct MI250X
amd · cdna2 · 128 GB HBM2e · 560W TDP
VRAM
128 GB
BF16 TFLOPS
383
Bandwidth
3277 GB/s
From
$0.79/hr
Spec Sheet
Pricing by Provider
| Provider | On-Demand | Reserved | Spot | Badge |
|---|---|---|---|---|
| fluidstack | $1.09/hr | - | $0.79/hr | Cheapest |
| vast_ai | $1.20/hr | - | $0.85/hr |
Compatible Models (278)
Single GPU (236 models)
Multi-GPU (42 models)
Training Capabilities
Estimated GPU count for full fine-tuning (AdamW, BF16) and QLoRA
| Model Size | Full Fine-Tune | QLoRA |
|---|---|---|
| 7B model | 2 GPUs | 1 GPU |
| 13B model | 2 GPUs | 1 GPU |
| 70B model | 11 GPUs | 1 GPU |
Energy Efficiency
Estimated tokens/second per Watt for popular models
Similar GPUs
| GPU | VRAM | BF16 TFLOPS | BW (GB/s) | From |
|---|---|---|---|---|
| Instinct MI210 | 64 GB | 181 | 1638 | $0.99/hr |
| Gaudi 3 | 128 GB | 1835 | 3700 | $2.30/hr |
| Gaudi 3 HL-325L | 128 GB | 1835 | 3700 | $2.65/hr |
| H200 SXM | 141 GB | 990 | 4800 | $2.69/hr |
| H20 | 96 GB | 148 | 4000 | $0.99/hr |
Methodology Note
Performance estimates for the Instinct MI250Xare based on InferenceBench's roofline performance model with CUDA kernel-level optimization including FlashAttention v2 and PagedAttention. Memory calculations account for model weights (128 GB HBM2e available), KV-cache allocation, and activation memory. Throughput predictions use the Instinct MI250X's rated 3277 GB/s memory bandwidth and 383 BF16 TFLOPS compute capacity as roofline ceilings, with empirical correction factors per GPU architecture (cdna2). See our full methodology.
Frequently Asked Questions
How many AI models can run on Instinct MI250X?
The Instinct MI250X can run 278 AI models from our database within a single node. Compatible models range across various parameter sizes depending on the quantization precision (BF16, FP8, INT4). Smaller models fit on a single GPU while larger models may require multi-GPU setups up to 8x Instinct MI250X.
What is the Instinct MI250X inference throughput?
The Instinct MI250X delivers 383 BF16 TFLOPS and 383 FP8 TFLOPS with 3277 GB/s memory bandwidth. Actual inference throughput (tokens/sec) depends on the model size, precision, and batch size. Use our calculator for model-specific throughput estimates.
How much does Instinct MI250X cost per hour?
The Instinct MI250X is available starting from $0.79/hour via fluidstack. Prices vary by provider and pricing tier (on-demand, reserved, spot). Compare pricing across all providers in the table above.