Specifications Compared
| Spec | B200 | RTX A4000 |
|---|---|---|
| TDP | 1000W | 140W |
| VRAM | 180-192 GB | 16-20 GB |
| CUDA Cores | 18,432 | 6,144 |
| FP4 (dense) | 9,000 TFLOPS | Not published |
| FP8 (dense) | 4,500 TFLOPS | Not published |
| Memory Type | HBM3e | GDDR6 |
| Architecture | Blackwell | Ampere |
| FP16 (dense) | 2,250 TFLOPS | Not published |
| Form Factors | SXM, NVL | PCIe |
| INT8 (dense) | 4,500 TOPS | Not published |
| Interconnect | NVLink, PCIe 6.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 576 | 192 |
| FP32 Performance | 75 TFLOPS | 19.2 TFLOPS |
| FP64 Performance | 37 TFLOPS | Not published |
| Memory Bandwidth | 8,000 GB/s | 448 GB/s |
| FP4 (with sparsity) | 18,000 TFLOPS | Not published |
| FP8 (with sparsity) | 9,000 TFLOPS | Not published |
| FP16 (with sparsity) | 4,500 TFLOPS | 153.4 TFLOPS |
| INT8 (with sparsity) | 9,000 TOPS | Not published |
Performance Analysis
The B200 FP16 dense rating reaches 2250 TFLOPS while the RTX A4000 lists no dense FP16 figure. The B200 FP16 with sparsity rating reaches 4500 TFLOPS against the RTX A4000 FP16 with sparsity rating of 153.4 TFLOPS. The B200 FP32 rating reaches 75 TFLOPS against the RTX A4000 FP32 rating of 19.2 TFLOPS. Memory bandwidth of 8000 GB per second on the B200 versus 448 GB per second on the RTX A4000 permits larger batch sizes during training and inference passes. The FP16 with sparsity advantage on the B200 supports faster matrix operations in both dense and sparse modes when compared directly to the corresponding sparse mode on the RTX A4000.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
B200
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| RunPod | global | 1 | $7.99 | — | Deploy |
| VERDA | FIN-HEL | 8 | $8.23 | $65.84 | Deploy |
| Lyceum | Europe | 1 | $8.79 | — | Deploy |
| Vast.ai | , US | 4 | $9.00 | $36.00 | Deploy |
4 providers in stock, 6 offers (cheapest per provider shown). All B200 offers, price history and alerts
RTX A4000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Hyperstack | NORWAY-1 | 1 | $0.15 | — | Deploy |
| Paperspace | ny2 | 2 | $0.76 | $1.52 | Deploy |
2 providers in stock, 7 offers (cheapest per provider shown). All RTX A4000 offers, price history and alerts
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When to Choose the B200
The B200 suits LLM training runs that require 180 to 192 GB of memory and 8000 GB per second bandwidth. Its 2250 TFLOPS FP16 dense rating and 4500 TFLOPS FP16 with sparsity rating accelerate large model workloads that exceed the capacity of 16 to 20 GB cards.
When to Choose the RTX A4000
The RTX A4000 suits inference tasks in power constrained servers limited to 140 W TDP. Its PCIe 4.0 interface and 19.2 TFLOPS FP32 rating fit compact deployments where 16 to 20 GB of memory meets model size needs.
Use Cases
The B200 supplies 180 to 192 GB VRAM and 2250 TFLOPS FP16 dense to handle large models.
The B200 4500 TFLOPS FP16 with sparsity rating supports higher throughput than the 153.4 TFLOPS on the RTX A4000.
The B200 8000 GB per second bandwidth accommodates larger batch sizes than the 448 GB per second on the RTX A4000.
The RTX A4000 140 W TDP and 19.2 TFLOPS FP32 rating fit desktop inference workloads within 16 to 20 GB memory.
The B200 75 TFLOPS FP32 rating exceeds the 19.2 TFLOPS FP32 rating of the RTX A4000 for compute heavy simulations.
Frequently Asked Questions
What is the memory difference between B200 and RTX A4000?▾
The B200 contains 180 to 192 GB of HBM3e memory. The RTX A4000 contains 16 to 20 GB of GDDR6 memory.
How does FP16 performance compare?▾
The B200 reaches 2250 TFLOPS FP16 dense and 4500 TFLOPS FP16 with sparsity. The RTX A4000 reaches 153.4 TFLOPS FP16 with sparsity.
What are the power requirements?▾
The B200 requires 1000 W TDP. The RTX A4000 requires 140 W TDP.
Which GPU offers higher memory bandwidth?▾
The B200 offers 8000 GB per second. The RTX A4000 offers 448 GB per second.
What architectures do these GPUs use?▾
The B200 uses Blackwell architecture. The RTX A4000 uses Ampere architecture.
Which is cheaper to rent, the B200 or the RTX A4000?▾
Cloud rental prices for both the B200 and RTX A4000 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 B200 have compared to the RTX A4000?▾
The B200 has 180 to 192 GB of HBM3e memory. The RTX A4000 has 16 to 20 GB of GDDR6 memory.
Can I find B200 and RTX A4000 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 B200 and the RTX A4000?▾
The B200 uses the Blackwell architecture (2024) while the RTX A4000 uses Ampere (2021). The B200 has 180-192 GB of HBM3e at 8,000 GB/s; the RTX A4000 has 16-20 GB of GDDR6 at 448 GB/s, so the B200 has 17.9x the memory bandwidth of the RTX A4000.
Rent these GPUs
Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.
Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the B200 and the RTX A4000. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
Next steps
- Rent B200Every current offer by provider, daily price history and a price alert.
- Rent RTX A4000Every current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.