Specifications Compared
| Spec | A40 | H200 |
|---|---|---|
| TDP | 300W | 700W |
| VRAM | 48 GB | 141 GB |
| CUDA Cores | 10,752 | 16,896 |
| Memory Type | GDDR6 | HBM3e |
| Architecture | Ampere | Hopper |
| Form Factors | PCIe | SXM, NVL |
| Interconnect | NVLink | NVLink, PCIe 5.0, InfiniBand |
| Tensor Cores | 336 | 528 |
| FP16 Performance | 37.4 TFLOPS | 1,979 TFLOPS |
| FP32 Performance | 37.4 TFLOPS | 67 TFLOPS |
| FP64 Performance | 0.6 TFLOPS | 34 TFLOPS |
| INT8 Performance | 299 TOPS | 3,958 TOPS |
| Memory Bandwidth | 696 GB/s | 4,800 GB/s |
Performance Analysis
Memory specifications define primary differences: the H200 NVL's 141 GB HBM3e VRAM supports models far larger than the A40's 48 GB GDDR6 limit, enabling bigger batch sizes in training and inference without out-of-memory errors. Bandwidth of 4800 GB/s on the H200 NVL accelerates data movement, reducing bottlenecks in memory-intensive tasks like LLM processing, compared to A40's 696 GB/s.
Compute performance underscores AI suitability: H200 NVL achieves 1979 TFLOPS FP16 for training acceleration, dwarfing A40's 37.4 TFLOPS, while FP32 at 67 TFLOPS edges out A40's 37.4 TFLOPS for precision tasks. The H200 NVL's FP8 capability at 3958 TFLOPS optimizes inference for quantized models, allowing higher throughput. These metrics translate to faster epochs in training and larger batches in inference on H200 NVL, though its 700W TDP demands robust cooling versus A40's 300W.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
A40
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 TensorDock | NVIDIA RTX A4000 16GB VRAM | 16GB | 0 vCPU 0GB RAM | Tallinn, Harjumaa | $0.08/GPU/hr | Available | ||
 Vast.ai | 8×NVIDIA RTX A4000 16GB VRAM | 16GB | 80 vCPU 201GB RAM 1698GB Storage | United Kingdom | $0.15/GPU/hr $1.17/hr total (8×) | Available | ||
 Hyperstack | 2×NVIDIA RTX A4000 16GB VRAM | 16GB | 8 vCPU 43GB RAM 200GB Storage | Norway | $0.15/GPU/hr $0.30/hr total (2×) | Available | ||
Hyperstack | NVIDIA RTX A4000 16GB VRAM | 16GB | 4 vCPU 21GB RAM 100GB Storage | Norway | $0.15/GPU/hr | Available | ||
Vast.ai | 8×NVIDIA RTX A4000 16GB VRAM | 16GB | 80 vCPU 315GB RAM 2313GB Storage | United Kingdom | $0.16/GPU/hr $1.28/hr total (8×) | Available |
H200 NVL
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 Vultr | NVIDIA GH200 Grace Hopper 96GB VRAM | 96GB | 72 vCPU 480GB RAM 960GB Storage | Atlanta | $1.99/GPU/hr | Available | ||
 Lambda Labs | NVIDIA GH200 Grace Hopper 96GB VRAM | 96GB | 64 vCPU 432GB RAM 4096GB Storage | Virginia | $2.29/GPU/hr | Available | ||
 Nebius | NVIDIA H200 SXM 141GB VRAM | 141GB | 16 vCPU 200GB RAM | 🌍Europe | $2.45/GPU/hr | |||
 CoreWeave | 8×NVIDIA H200 SXM 141GB VRAM | 141GB | 128 vCPU 0GB RAM 61440GB Storage | United States | $2.58/GPU/hr $20.64/hr total (8×) | |||
 Ori | NVIDIA H200 SXM 141GB VRAM | 141GB | 24 vCPU 240GB RAM 3000GB Storage | London | $3.50/GPU/hr | Available |
When to Choose the A40
The A40 suits budget-conscious deployments for moderate AI workloads. Its pricing from $0.24 per hour across 23 providers offers broad availability, ideal for prototyping or smaller models fitting within 48 GB VRAM. Lower 300W TDP fits standard PCIe setups without specialized infrastructure.
When to Choose the H200 NVL
The H200 NVL excels in demanding scenarios like large-scale LLM training or inference. Its 141 GB VRAM and 4800 GB/s bandwidth handle massive datasets, with 1979 TFLOPS FP16 enabling rapid iterations. NVLink and InfiniBand interconnects support multi-GPU clusters for enterprise HPC.
Use Cases
H200 NVL's 141 GB VRAM and 1979 TFLOPS FP16 support training massive LLMs beyond A40's 48 GB capacity. Bandwidth of 4800 GB/s minimizes data stalls during large-batch training.
H200 NVL's FP8 at 3958 TFLOPS and 141 GB VRAM enable high-throughput serving of large models. A40's 37.4 TFLOPS FP16 limits scale for production inference.
A40 handles fine-tuning of models under 48 GB VRAM cost-effectively at $0.24 per hour minimum. H200 NVL accelerates larger parameter sets with 1979 TFLOPS FP16.
A40's 48 GB VRAM suffices for Stable Diffusion generation at 37.4 TFLOPS FP16. Lower $1.31 per hour average pricing beats H200 NVL for creative workflows.
H200 NVL's 67 TFLOPS FP32 and NVLink interconnect optimize simulations. A40's matching 37.4 TFLOPS FP32 falls short for memory-heavy scientific tasks.
Frequently Asked Questions
What is the VRAM difference between NVIDIA A40 and H200 NVL?▾
The H200 NVL provides 141 GB HBM3e VRAM, tripling the A40's 48 GB GDDR6. This enables handling of much larger models on H200 NVL. Memory bandwidth reaches 4800 GB/s on H200 NVL versus 696 GB/s on A40.
Which GPU has higher FP16 performance?▾
H200 NVL delivers 1979 TFLOPS FP16, over 50 times the A40's 37.4 TFLOPS. This gap accelerates AI training significantly on H200 NVL. FP32 on H200 NVL is 67 TFLOPS compared to A40's 37.4 TFLOPS.
What are the cloud pricing differences?▾
A40 starts at $0.24 per hour, averaging $1.31 per hour across 23 offers. H200 NVL begins at $0.50 per hour, averaging $2.60 per hour over 5 offers. A40 provides more availability for cost-sensitive users.
Is H200 NVL better for LLM inference?▾
Yes, H200 NVL's FP8 at 3958 TFLOPS and 141 GB VRAM optimize quantized inference for LLMs. A40's 37.4 TFLOPS FP16 limits batch sizes. Bandwidth of 4800 GB/s further boosts H200 NVL throughput.
What are the power requirements?▾
A40 has a 300W TDP suitable for PCIe form factors. H200 NVL requires 700W in SXM or NVL setups. Higher TDP on H200 NVL demands advanced cooling infrastructure.
Which supports better interconnects?▾
H200 NVL offers NVLink, PCIe 5.0, and InfiniBand for multi-GPU scaling. A40 relies on NVLink alone. This makes H200 NVL preferable for clustered workloads.
Which is cheaper to rent, the A40 or the H200?▾
Cloud rental prices for both the A40 and H200 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the A40 have compared to the H200?▾
The A40 has 48 GB of GDDR6 memory. The H200 has 141 GB of HBM3e memory.
Can I find A40 and H200 GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the A40 and the H200?▾
The A40 uses the Ampere architecture (2020) while the H200 uses Hopper (2024). The H200 delivers 52.9x the FP16 throughput and 6.9x the memory bandwidth of the A40.