NVIDIA A100 PCIevsNVIDIA A40
Comprehensive comparison for AI, machine learning, and high-performance computing workloads.
NVIDIA A100 PCIe
Ampere Architecture
NVIDIA A40
Ampere Architecture
Detailed Specifications
| Specification | NVIDIA A100 PCIe | NVIDIA A40 |
|---|---|---|
| Architecture | Ampere | Ampere |
| Release Year | 2020 | 2020 |
| VRAM | 80 GB+66.7% | 48 GB |
| Memory Type | HBM2e | GDDR6 |
| Memory Bandwidth | 1935 GB/s+178.0% | 696 GB/s |
| FP32 Performance | 19.5 TFLOPS | 37.4 TFLOPS+47.9% |
| FP16 Performance | 78 TFLOPS+4.3% | 74.8 TFLOPS |
| INT8 Performance | 624 TOPS+108.7% | 299 TOPS |
| Tensor Cores | 6912 | 10752 |
| CUDA Cores | 6912 | 10752 |
| TDP | 300W | 300W |
| Form Factor | PCIe | PCIe |
| NVLink Support | No | No |
| Avg. Price/Hour | $0.98+30.7% | $0.75 |
Performance Breakdown
Compute Performance
Single-precision floating-point performance for general compute workloads
NVIDIA A40 is 47.9% faster
AI Training Performance
Half-precision performance optimized for deep learning training
NVIDIA A100 PCIe is 4.3% faster
AI Inference Performance
Integer performance for efficient model inference and deployment
NVIDIA A100 PCIe is 108.7% faster
Memory Bandwidth
Data transfer speed between GPU and memory
NVIDIA A100 PCIe is 178% faster
NVIDIA A40
NVIDIA A100 PCIe
NVIDIA A40
NVIDIA A40
Ideal Workloads
NVIDIA A100 PCIe
NVIDIA A40
Cost Analysis
Hourly Rate
Daily Cost
Monthly Cost
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Frequently Asked Questions
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