NVIDIA H100 PCIevsNVIDIA A40
Comprehensive comparison for AI, machine learning, and high-performance computing workloads.
NVIDIA H100 PCIe
Hopper Architecture
NVIDIA A40
Ampere Architecture
Detailed Specifications
| Specification | NVIDIA H100 PCIe | NVIDIA A40 |
|---|---|---|
| Architecture | Hopper | Ampere |
| Release Year | 2022 | 2020 |
| VRAM | 80 GB+66.7% | 48 GB |
| Memory Type | HBM3 | GDDR6 |
| Memory Bandwidth | 2000 GB/s+187.4% | 696 GB/s |
| FP32 Performance | 51 TFLOPS+36.4% | 37.4 TFLOPS |
| FP16 Performance | 102 TFLOPS+36.4% | 74.8 TFLOPS |
| INT8 Performance | 2040 TOPS+582.3% | 299 TOPS |
| Tensor Cores | 14592 | 10752 |
| CUDA Cores | 14592 | 10752 |
| TDP | 350W | 300W |
| Form Factor | PCIe | PCIe |
| NVLink Support | No | No |
| Avg. Price/Hour | $1.4+86.7% | $0.75 |
Performance Breakdown
Compute Performance
Single-precision floating-point performance for general compute workloads
NVIDIA H100 PCIe is 36.4% faster
AI Training Performance
Half-precision performance optimized for deep learning training
NVIDIA H100 PCIe is 36.4% faster
AI Inference Performance
Integer performance for efficient model inference and deployment
NVIDIA H100 PCIe is 582.3% faster
Memory Bandwidth
Data transfer speed between GPU and memory
NVIDIA H100 PCIe is 187.4% faster
NVIDIA H100 PCIe
NVIDIA H100 PCIe
NVIDIA A40
NVIDIA H100 PCIe
Ideal Workloads
NVIDIA H100 PCIe
NVIDIA A40
Cost Analysis
Hourly Rate
Daily Cost
Monthly Cost
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Frequently Asked Questions
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