RTX 4090
nvidia · ada · 24 GB GDDR6X · 450W TDP
VRAM
24 GB
BF16 TFLOPS
165
Bandwidth
1008 GB/s
From
$0.39/hr
Spec Sheet
Pricing by Provider
| Provider | On-Demand | Reserved | Spot | Badge |
|---|---|---|---|---|
| fluidstack | $0.59/hr | - | $0.39/hr | Cheapest |
| vast_ai | $0.74/hr | - | $0.44/hr | |
| tensordock | $0.69/hr | - | $0.44/hr | |
| runpod | $1.10/hr | - | $0.79/hr | |
| lambda | $0.89/hr | - | - |
Pricing History
Compatible Models (240)
Single GPU (169 models)
Multi-GPU (71 models)
Training Capabilities
Estimated GPU count for full fine-tuning (AdamW, BF16) and QLoRA
| Model Size | Full Fine-Tune | QLoRA |
|---|---|---|
| 7B model | 6 GPUs | 1 GPU |
| 13B model | 11 GPUs | 1 GPU |
| 70B model | 55 GPUs | 2 GPUs |
Energy Efficiency
Estimated tokens/second per Watt for popular models
Similar GPUs
| GPU | VRAM | BF16 TFLOPS | BW (GB/s) | From |
|---|---|---|---|---|
| L4 | 24 GB | 121 | 300 | $0.29/hr |
| RTX 4080 | 16 GB | 97 | 717 | $0.32/hr |
| RTX 4060 Ti 16GB | 16 GB | 44 | 288 | $0.30/hr |
| RTX 4070 Ti | 12 GB | 93 | 504 | $0.25/hr |
| RTX 4070 Super | 12 GB | 55 | 504 | $0.22/hr |
Methodology Note
Performance estimates for the RTX 4090are based on InferenceBench's roofline performance model with CUDA kernel-level optimization including FlashAttention v2 and PagedAttention. Memory calculations account for model weights (24 GB GDDR6X available), KV-cache allocation, and activation memory. Throughput predictions use the RTX 4090's rated 1008 GB/s memory bandwidth and 165 BF16 TFLOPS compute capacity as roofline ceilings, with empirical correction factors per GPU architecture (ada). See our full methodology.
Frequently Asked Questions
How many AI models can run on RTX 4090?
The RTX 4090 can run 240 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 4x RTX 4090.
What is the RTX 4090 inference throughput?
The RTX 4090 delivers 165 BF16 TFLOPS and 330 FP8 TFLOPS with 1008 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 RTX 4090 cost per hour?
The RTX 4090 is available starting from $0.39/hour via fluidstack. Prices vary by provider and pricing tier (on-demand, reserved, spot). Compare pricing across all providers in the table above.