Specifications Compared
| Spec | B200 | RTX 4090 |
|---|---|---|
| TDP | 1000W | 450W |
| VRAM | 180-192 GB | 24 GB |
| CUDA Cores | 18,432 | 16,384 |
| FP4 (dense) | 9,000 TFLOPS | Not published |
| FP8 (dense) | 4,500 TFLOPS | 330.3 TFLOPS |
| Memory Type | HBM3e | GDDR6X |
| Architecture | Blackwell | Ada Lovelace |
| FP16 (dense) | 2,250 TFLOPS | 165.2 TFLOPS |
| Form Factors | SXM, NVL | PCIe |
| INT8 (dense) | 4,500 TOPS | 660.6 TOPS |
| Interconnect | NVLink, PCIe 6.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 576 | 512 |
| FP32 Performance | 75 TFLOPS | 82.6 TFLOPS |
| FP64 Performance | 37 TFLOPS | 1.3 TFLOPS |
| Memory Bandwidth | 8,000 GB/s | 1,008 GB/s |
| FP4 (with sparsity) | 18,000 TFLOPS | Not published |
| FP8 (with sparsity) | 9,000 TFLOPS | 660.6 TFLOPS |
| FP16 (with sparsity) | 4,500 TFLOPS | 330.4 TFLOPS |
| INT8 (with sparsity) | 9,000 TOPS | 1,321.2 TOPS |
Performance Analysis
Dense FP16 performance on the B200 reaches 2250 TFLOPS while the RTX 4090 reaches 165.2 TFLOPS. The same pattern holds for dense FP16 figures when sparsity is applied at 4500 TFLOPS versus 330.4 TFLOPS. FP32 performance shows the RTX 4090 at 82.6 TFLOPS against the B200 at 75 TFLOPS. Memory bandwidth of 8000 GB/s on the B200 compared with 1008 GB/s on the RTX 4090 permits larger batch sizes during training or inference steps that move substantial tensor data. The TDP difference of 1000 W versus 450 W further separates sustained operation limits between the two devices.
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 |
|---|---|---|---|---|---|
| VERDA | FIN-HEL | 8 | $8.23 | $65.84 | Deploy |
| Lyceum | Europe | 1 | $8.79 | — | Deploy |
| Vast.ai | , US | 4 | $9.00 | $36.00 | Deploy |
3 providers in stock, 4 offers (cheapest per provider shown). All B200 offers, price history and alerts
RTX 4090
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Hungary, HU | 1 | $1.53 | — | Deploy |
| LeaderGPU | The Netherlands | 1 | $1.66 | — | Deploy |
2 providers in stock, 7 offers (cheapest per provider shown). All RTX 4090 offers, price history and alerts
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When to Choose the B200
The B200 suits workloads that require 180 to 192 GB HBM3e memory and 8000 GB/s bandwidth together with 2250 TFLOPS dense FP16 throughput. Large scale model training or inference jobs that exceed 24 GB capacity benefit directly from these specifications.
When to Choose the RTX 4090
The RTX 4090 suits workloads that fit within 24 GB GDDR6X memory and that value 82.6 TFLOPS FP32 performance at a TDP of 450 W. Smaller inference tasks or scientific simulations that remain under the memory limit of the RTX 4090 operate efficiently with these specifications.
Use Cases
The B200 supplies 180 to 192 GB memory and 2250 TFLOPS dense FP16 that accommodate models too large for 24 GB devices.
The B200 delivers 4500 TFLOPS with sparsity in FP16 and 8000 GB/s bandwidth that support high throughput serving of large models.
The B200 provides 180 to 192 GB capacity and 2250 TFLOPS dense FP16 that allow fine tuning runs on models exceeding 24 GB.
The RTX 4090 supplies 24 GB memory and 165.2 TFLOPS dense FP16 that suffice for typical image generation workloads.
The RTX 4090 lists 82.6 TFLOPS FP32 performance at 450 W TDP that matches many simulation codes within 24 GB limits.
Frequently Asked Questions
What is the memory bandwidth difference between the B200 and the RTX 4090?▾
The B200 reaches 8000 GB/s bandwidth. The RTX 4090 reaches 1008 GB/s bandwidth.
How do the dense FP16 ratings compare between the two GPUs?▾
The B200 achieves 2250 TFLOPS dense FP16. The RTX 4090 achieves 165.2 TFLOPS dense FP16.
Which GPU has higher FP32 performance?▾
The RTX 4090 lists 82.6 TFLOPS FP32. The B200 lists 75 TFLOPS FP32.
What TDP values are listed for the B200 and the RTX 4090?▾
The B200 carries a TDP of 1000 W. The RTX 4090 carries a TDP of 450 W.
Do the GPUs share the same interconnect options?▾
The B200 supports NVLink, PCIe 6.0, and InfiniBand. The RTX 4090 supports PCIe 4.0.
Which is cheaper to rent, the B200 or the RTX 4090?▾
Cloud rental prices for both the B200 and RTX 4090 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 4090?▾
The B200 has 180 to 192 GB of HBM3e memory. The RTX 4090 has 24 GB of GDDR6X memory.
Can I find B200 and RTX 4090 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 4090?▾
The B200 uses the Blackwell architecture (2024) while the RTX 4090 uses Ada Lovelace (2022). The B200 delivers 13.6x the dense FP16 throughput (2,250 vs 165.2 TFLOPS, both without sparsity) and 7.9x the memory bandwidth of the RTX 4090.
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 4090. 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 4090Every 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.