Instinct MI325X
amd · cdna3 · 256 GB HBM3e · 750W TDP
VRAM
256 GB
BF16 TFLOPS
1307
Bandwidth
6000 GB/s
From
$2.49/hr
Spec Sheet
Pricing by Provider
| Provider | On-Demand | Reserved | Spot | Badge |
|---|---|---|---|---|
| vast_ai | $3.49/hr | - | $2.49/hr | Cheapest |
| coreweave | $4.19/hr | $3.19/hr | - | |
| lambda | $3.29/hr | - | - |
Compatible Models (280)
Single GPU (252 models)
Multi-GPU (28 models)
Training Capabilities
Estimated GPU count for full fine-tuning (AdamW, BF16) and QLoRA
| Model Size | Full Fine-Tune | QLoRA |
|---|---|---|
| 7B model | 1 GPU | 1 GPU |
| 13B model | 1 GPU | 1 GPU |
| 70B model | 6 GPUs | 1 GPU |
Energy Efficiency
Estimated tokens/second per Watt for popular models
Similar GPUs
| GPU | VRAM | BF16 TFLOPS | BW (GB/s) | From |
|---|---|---|---|---|
| Instinct MI300X | 192 GB | 1307 | 5300 | $1.79/hr |
| Groq LPU | 230 GB | 188 | 80000 | $0.00/hr |
| B300 | 288 GB | 2800 | 12000 | $0.00/hr |
| B100 SXM | 192 GB | 1750 | 8000 | $4.50/hr |
| GB200 NVL72 (per GPU) | 192 GB | 2250 | 8000 | $6.50/hr |
Methodology Note
Performance estimates for the Instinct MI325Xare based on InferenceBench's roofline performance model with CUDA kernel-level optimization including FlashAttention v2 and PagedAttention. Memory calculations account for model weights (256 GB HBM3e available), KV-cache allocation, and activation memory. Throughput predictions use the Instinct MI325X's rated 6000 GB/s memory bandwidth and 1307 BF16 TFLOPS compute capacity as roofline ceilings, with empirical correction factors per GPU architecture (cdna3). See our full methodology.
Frequently Asked Questions
How many AI models can run on Instinct MI325X?
The Instinct MI325X can run 280 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 MI325X.
What is the Instinct MI325X inference throughput?
The Instinct MI325X delivers 1307 BF16 TFLOPS and 2614 FP8 TFLOPS with 6000 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 MI325X cost per hour?
The Instinct MI325X is available starting from $2.49/hour via vast_ai. Prices vary by provider and pricing tier (on-demand, reserved, spot). Compare pricing across all providers in the table above.