A100 SXM4 40GB on Vast.ai
Visit Vast.aiVast.ai offers the NVIDIA A100 SXM4 40GB, a premier enterprise-grade GPU from the Ampere architecture with 40GB of HBM2e VRAM, optimized for demanding AI, ML training, inference, and HPC workloads in data centers. This GPU excels in handling large-scale models, delivering up to 19.5 TFLOPS FP64, 312 TFLOPS Tensor FP16, and advanced features like MIG for multi-tenancy. Paired with Vast.ai's decentralized marketplace, it provides unmatched cost efficiency—often under $1/hour—via peer-hosted instances, spot pricing, and granular filters such as DLPerf/$. Ideal for cost-sensitive ML engineers, researchers, and teams running distributed experiments, this combo democratizes access to high-end hardware without long-term commitments. While host variability exists, Vast.ai's search tools help select reliable, high-performance options, making it a go-to for budget-optimized, scalable AI development.
Why NVIDIA A100 SXM4 40GB on Vast.ai?
Choose Vast.ai for NVIDIA A100 SXM4 40GB when prioritizing absolute lowest costs in a decentralized marketplace. Vast.ai aggregates global hosts offering this GPU at fractions of major cloud prices (e.g., spot rates as low as $0.50-$0.80/hour), with per-hour billing and no egress fees. Its strengths—granular filters like DLPerf/$, reliability scores, and image templates—complement the A100's capabilities for large-batch training and fine-tuning. Unique advantages include spot instances for interruptible workloads, distributed scaling across hosts, and quick spin-up for experiments. This suits budget-conscious users avoiding vendor lock-in, though it requires vetting hosts for consistency versus managed clouds.
Live Pricing
Real-time NVIDIA A100 SXM4 40GB offers from Vast.ai
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 Vast.ai | 2×NVIDIA A100 SXM4 40GB 40GB VRAM | 40GB | 256 vCPU 252GB RAM 826GB Storage | Slovenia | $0.67/GPU/hr $1.33/hr total (2×) | Sold Out | ||
Vast.ai | 4×NVIDIA A100 SXM4 40GB 40GB VRAM | 40GB | 256 vCPU 504GB RAM 1869GB Storage | Slovenia | $0.67/GPU/hr $2.67/hr total (4×) | Sold Out | ||
Vast.ai | NVIDIA A100 SXM4 40GB 40GB VRAM | 40GB | 256 vCPU 126GB RAM 400GB Storage | Slovenia | $0.67/GPU/hr | Sold Out | ||
Vast.ai | NVIDIA A100 SXM4 40GB 40GB VRAM | 40GB | 256 vCPU 63GB RAM 2252GB Storage | Slovenia | $0.73/GPU/hr | Sold Out | ||
Vast.ai | 2×NVIDIA A100 SXM4 40GB 40GB VRAM | 40GB | 256 vCPU 126GB RAM 4529GB Storage | Slovenia | $0.73/GPU/hr $1.47/hr total (2×) | Sold Out |
Performance Notes
On Vast.ai, the A100 SXM4 40GB delivers flagship Ampere performance: 40GB VRAM supports massive models like GPT-3 variants or Stable Diffusion at scale. Expect strong single-GPU throughput for training/inference, with MIG enabling partitioning. Multi-GPU setups (up to 8x) are available on select hosts, but scaling depends on NVLink/PCIe configs—often PCIe on consumer rigs. Network bandwidth varies (1-10Gbps typical), storage is host-dependent (NVMe SSDs common), and DLPerf scores guide expectations. Benchmarks show near-native speeds on vetted instances, but decentralized nature means occasional variability in interconnects or CPU pairing; prioritize high-rated hosts for consistency.
A decentralized marketplace for absolute lowest costs and distributed experiments.
Best For
Unique Features
- Granular search filters like DLPerf/$
- Decentralized marketplace
VRAM
40GB
Architecture
Ampere
Tier
enterprise
Platform Features
Getting Started
Getting started on Vast.ai with NVIDIA A100 SXM4 40GB is straightforward: sign up, search the marketplace with filters for this GPU, select a reliable host, and launch pre-configured templates for PyTorch/TensorFlow. Instances boot in minutes with SSH access, supporting Docker/Jupyter for immediate ML workflows.
Steps
- 1Create a free Vast.ai account and add payment method.
- 2Search for 'A100 SXM4 40GB' and apply filters (e.g., DLPerf/$, on-demand/spot, reliability >90%).
- 3Select a host instance, choose image (e.g., PyTorch 2.0), and configure resources.
- 4Rent and launch; connect via SSH or noVNC from the dashboard.
- 5Verify GPU with `nvidia-smi` and start your workload.
Pro Tips
- Filter by DLPerf/$ and host uptime (>99%) to balance cost and performance reliability.
- Opt for spot instances on non-critical jobs to save 50-70%; set auto-relaunch for resilience.
- Use Vast.ai's templates and persistent storage rentals for seamless multi-session experiments.
Frequently Asked Questions
What is Vast.ai's billing model for NVIDIA A100 SXM4 40GB?▾
Vast.ai bills per-hour for GPU instances including NVIDIA A100 SXM4 40GB. Hourly billing means you pay for full hours even if your job completes mid-hour. Plan your workloads accordingly to maximize cost efficiency.
Does Vast.ai offer spot instances for NVIDIA A100 SXM4 40GB?▾
Yes, Vast.ai offers spot/preemptible instances for NVIDIA A100 SXM4 40GB, which can reduce costs by 50-80% compared to on-demand pricing. Spot instances are ideal for fault-tolerant workloads like batch inference, hyperparameter tuning, and training jobs with checkpointing. Note that spot instances can be interrupted when demand is high, so ensure your workflow can handle preemption gracefully.
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