Specifications Compared
| Spec | A100 | RTX-4000-ADA |
|---|---|---|
| TDP | 400W | 130W |
| VRAM | 40-80 GB | 20 GB |
| CUDA Cores | 6,912 | 6,144 |
| Memory Type | HBM2e | GDDR6 |
| Architecture | Ampere | Ada Lovelace |
| Form Factors | SXM4, PCIe | PCIe |
| Interconnect | NVLink, PCIe 4.0, InfiniBand | |
| Tensor Cores | 432 | 192 |
| FP16 Performance | 312 TFLOPS | 26.7 TFLOPS |
| FP32 Performance | 19.5 TFLOPS | 26.7 TFLOPS |
| FP64 Performance | 9.7 TFLOPS | |
| INT8 Performance | 624 TOPS | 427 TOPS |
| Memory Bandwidth | 2,039 GB/s | 360 GB/s |
Performance Analysis
The A100's 312 TFLOPS FP16 performance dwarfs the RTX 4000 Ada's 26.7 TFLOPS, enabling faster training of deep learning models that leverage half-precision arithmetic for throughput gains. In contrast, the RTX 4000 Ada's equal 26.7 TFLOPS FP16 and FP32 ratings provide better efficiency for inference or simulations requiring single-precision accuracy, where the A100 trails at 19.5 TFLOPS FP32. This FP16 to FP32 delta means the A100 accelerates large-scale model training by up to 11 times in raw compute, but the Ada GPU handles mixed-precision inference more uniformly. Memory bandwidth defines practical limits: the A100's 2039 GB/s supports batch sizes exceeding those feasible on the RTX 4000 Ada's 360 GB/s, reducing per-iteration latency in training loops with 80 GB versus 20 GB VRAM. Higher TDP on the A100 at 400W demands robust cooling, while the 130W RTX 4000 Ada fits dense, low-power cloud instances. Overall, these specs position the A100 for high-volume data movement in AI pipelines and the Ada for agile, precision-balanced tasks.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
A100 SXM4 80GB
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
![]() Vast.ai | NVIDIA A100 SXM4 80GB 80GB VRAM | 80GB | 256 vCPU 63GB RAM 2826GB Storage | Slovenia | $0.73/GPU/hr | Available | ||
![]() Vast.ai | 2×NVIDIA A100 SXM4 80GB 80GB VRAM | 80GB | 256 vCPU 126GB RAM 794GB Storage | Slovenia | $0.73/GPU/hr $1.47/hr total (2×) | Available | ||
![]() LeaderGPU | 8×NVIDIA A100 PCIe 80GB 80GB VRAM | 80GB | 64 vCPU 384GB RAM 2000GB Storage | Netherlands | $0.90/GPU/hr $7.20/hr total (8×) | Available | ||
![]() Vast.ai | NVIDIA A100 SXM4 80GB 80GB VRAM | 80GB | 64 vCPU 63GB RAM 557GB Storage | Czechia | $1.00/GPU/hr | Available | ||
![]() Denvr | 4×NVIDIA A100 PCIe 80GB 80GB VRAM | 80GB | 64 vCPU 512GB RAM 7600GB Storage | Virginia | $1.15/GPU/hr $4.60/hr total (4×) |
RTX 4000 Ada Generation
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
![]() RunPod | NVIDIA RTX 4000 Ada Generation 20GB VRAM | 20GB | 8 vCPU 50GB RAM | 🌍global | $0.26/GPU/hr | |||
![]() Vast.ai | NVIDIA RTX 4000 Ada Generation 20GB VRAM | 20GB | 64 vCPU 42GB RAM 505GB Storage | Hungary | $0.40/GPU/hr | Available | ||
![]() RunPod | NVIDIA RTX 4000 Ada Generation 20GB VRAM | 20GB | 8 vCPU 50GB RAM | 🌍global | $0.44/GPU/hr | |||
![]() RunPod | NVIDIA RTX 4000 Ada Generation 20GB VRAM | 20GB | 0 vCPU 0GB RAM | 🌍global | $0.57/GPU/hr |
When to Choose the A100 SXM4 80GB
Select the A100 SXM4 80GB for large language model training or scientific simulations needing 80 GB HBM2e VRAM to load massive datasets without swapping. Its 2039 GB/s bandwidth and 312 TFLOPS FP16 enable processing batch sizes that saturate multi-GPU NVLink interconnects, ideal for enterprises running prolonged HPC jobs at $1.39 per hour average.
When to Choose the RTX 4000 Ada Generation
Opt for the RTX 4000 Ada Generation in cost-sensitive inference deployments or fine-tuning smaller models under 20 GB VRAM, where its $0.27 per hour average pricing yields 5 times better value than the A100. The 130W TDP and PCIe form factor suit lightweight cloud instances for real-time rendering or Stable Diffusion tasks leveraging Ada Lovelace optimizations.
Use Cases
The A100's 80 GB HBM2e VRAM and 312 TFLOPS FP16 support loading billion-parameter models with large batches. RTX 4000 Ada's 20 GB GDDR6 falls short for such scales.
Smaller models fit RTX 4000 Ada's 20 GB VRAM at 26.7 TFLOPS FP16 for low-cost $0.27 per hour serving. A100 excels for high-concurrency batches via 2039 GB/s bandwidth.
A100's 80 GB VRAM accommodates full model states during fine-tuning of large LLMs. Its 312 TFLOPS FP16 speeds iterations over RTX 4000 Ada's constraints.
RTX 4000 Ada's Ada Lovelace architecture and 26.7 TFLOPS FP32 optimize image generation pipelines efficiently at $0.09 per hour starting price. A100's higher costs do not justify for typical resolutions.
A100's 2039 GB/s bandwidth and NVLink handle large-scale simulations with 80 GB datasets. RTX 4000 Ada's 360 GB/s limits complex matrix operations.
Frequently Asked Questions
What is the VRAM difference between A100 SXM4 80GB and RTX 4000 Ada?▾
The A100 provides 80 GB HBM2e VRAM, enabling larger models than the RTX 4000 Ada's 20 GB GDDR6. This quadruples capacity for training tasks exceeding 20 GB.
How do FP16 performances compare?▾
A100 delivers 312 TFLOPS FP16, over 11 times the RTX 4000 Ada's 26.7 TFLOPS. This gap accelerates AI training significantly on the A100.
What are the cloud pricing ranges?▾
A100 SXM4 80GB starts at $0.45 per hour averaging $1.39 across 25 offers. RTX 4000 Ada begins at $0.09 per hour with $0.27 average over 10 offers.
Which has higher memory bandwidth?▾
A100's 2039 GB/s bandwidth outpaces RTX 4000 Ada's 360 GB/s by nearly 6 times. This supports bigger batches in deep learning workflows.
What are the TDP ratings?▾
A100 requires 400W TDP for its datacenter form factors including SXM4. RTX 4000 Ada uses 130W, suiting lower-power PCIe deployments.
Which architecture is newer?▾
RTX 4000 Ada uses 2023 Ada Lovelace architecture versus A100's 2020 Ampere. Ada offers balanced FP32 at 26.7 TFLOPS matching its FP16.
Which is cheaper to rent, the A100 or the RTX 4000 Ada?▾
Cloud rental prices for both the A100 and RTX 4000 Ada 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 A100 have compared to the RTX 4000 Ada?▾
The A100 has 40 to 80 GB of HBM2e memory. The RTX 4000 Ada has 20 GB of GDDR6 memory.
Can I find A100 and RTX 4000 Ada 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 A100 and the RTX 4000 Ada?▾
The A100 uses the Ampere architecture (2020) while the RTX 4000 Ada uses Ada Lovelace (2023). The A100 delivers 11.7x the FP16 throughput and 5.7x the memory bandwidth of the RTX 4000 Ada.



