NVIDIA RTX 4090vsNVIDIA A40
Comprehensive comparison for AI, machine learning, and high-performance computing workloads.
NVIDIA RTX 4090
Ada Lovelace Architecture
NVIDIA A40
Ampere Architecture
Detailed Specifications
| Specification | NVIDIA RTX 4090 | NVIDIA A40 |
|---|---|---|
| Architecture | Ada Lovelace | Ampere |
| Release Year | 2022 | 2020 |
| VRAM | 24 GB | 48 GB+50% |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bandwidth | 1008 GB/s+44.8% | 696 GB/s |
| FP32 Performance | 82.6 TFLOPS+120.9% | 37.4 TFLOPS |
| FP16 Performance | 165 TFLOPS+120.6% | 74.8 TFLOPS |
| INT8 Performance | 661 TOPS+121.1% | 299 TOPS |
| Tensor Cores | 16384 | 10752 |
| CUDA Cores | 16384 | 10752 |
| TDP | 450W | 300W |
| Form Factor | Consumer | PCIe |
| NVLink Support | No | No |
| Avg. Price/Hour | $0.36 | $0.75+52% |
Performance Breakdown
Compute Performance
Single-precision floating-point performance for general compute workloads
NVIDIA RTX 4090 is 120.9% faster
AI Training Performance
Half-precision performance optimized for deep learning training
NVIDIA RTX 4090 is 120.6% faster
AI Inference Performance
Integer performance for efficient model inference and deployment
NVIDIA RTX 4090 is 121.1% faster
Memory Bandwidth
Data transfer speed between GPU and memory
NVIDIA RTX 4090 is 44.8% faster
NVIDIA RTX 4090
NVIDIA A40
NVIDIA RTX 4090
NVIDIA RTX 4090
Ideal Workloads
NVIDIA RTX 4090
NVIDIA A40
Cost Analysis
Hourly Rate
Daily Cost
Monthly Cost
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Frequently Asked Questions
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