Specifications Compared
| Spec | B200 | RTX 3080 |
|---|---|---|
| TDP | 1000W | 320W |
| VRAM | 180-192 GB | 10-12 GB |
| CUDA Cores | 18,432 | 8,704 |
| FP4 (dense) | 9,000 TFLOPS | Not published |
| FP8 (dense) | 4,500 TFLOPS | Not published |
| Memory Type | HBM3e | GDDR6X |
| Architecture | Blackwell | Ampere |
| FP16 (dense) | 2,250 TFLOPS | 59.5 TFLOPS |
| Form Factors | SXM, NVL | PCIe |
| INT8 (dense) | 4,500 TOPS | 238 TOPS |
| Interconnect | NVLink, PCIe 6.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 576 | 272 |
| FP32 Performance | 75 TFLOPS | 29.8 TFLOPS |
| FP64 Performance | 37 TFLOPS | Not published |
| Memory Bandwidth | 8,000 GB/s | 760 GB/s |
| FP4 (with sparsity) | 18,000 TFLOPS | Not published |
| FP8 (with sparsity) | 9,000 TFLOPS | Not published |
| FP16 (with sparsity) | 4,500 TFLOPS | 119 TFLOPS |
| INT8 (with sparsity) | 9,000 TOPS | 476 TOPS |
Performance Analysis
FP16 performance with sparsity reaches 4500 TFLOPS on the B200 compared to 119 TFLOPS with sparsity on the RTX 3080. The same like for like comparison applies to INT8 figures where the B200 lists 4500 TOPS dense against 238 TOPS dense on the RTX 3080. Bandwidth differences of 8000 GB/s to 760 GB/s influence sustained data movement rates and affect achievable batch sizes in memory constrained scenarios. These spec ratios determine suitability for precision specific workloads without mixing dense and sparse categories.
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 |
| Vast.ai | , US | 4 | $9.00 | $36.00 | Deploy |
2 providers in stock, 2 offers. All B200 offers, price history and alerts
RTX 3080
RTX 3080 is not offered on-demand by any provider we track right now. See the RTX 3080 rental page for last-seen listed prices and a price alert.
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One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $7.99/GPU-hr.
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When to Choose the B200
The B200 suits large scale LLM training because its 180 to 192 GB memory and 2250 TFLOPS dense FP16 exceed the corresponding RTX 3080 values. Scientific computing tasks benefit from the 75 TFLOPS FP32 rating and 8000 GB/s bandwidth that support extensive data sets. High sparsity enabled inference also aligns with the 4500 TFLOPS FP16 with sparsity specification on the B200.
When to Choose the RTX 3080
The RTX 3080 fits consumer level fine tuning where its 320W TDP and PCIe form factor reduce infrastructure demands relative to the 1000W TDP of the B200. Stable diffusion workloads operate within the 10 to 12 GB VRAM limit and 29.8 TFLOPS FP32 performance of the RTX 3080. Smaller inference jobs remain viable given the 59.5 TFLOPS dense FP16 rating.
Use Cases
The B200 supplies 2250 TFLOPS dense FP16 and 180 to 192 GB memory that exceed RTX 3080 equivalents for large models.
The B200 delivers 4500 TFLOPS FP16 with sparsity and 8000 GB/s bandwidth to sustain higher throughput than the RTX 3080.
Both GPUs handle fine tuning yet the RTX 3080 29.8 TFLOPS FP32 suits smaller models while the B200 75 TFLOPS FP32 addresses larger ones.
The RTX 3080 10 to 12 GB VRAM and 320W TDP align with typical stable diffusion requirements at lower power than the B200.
The B200 75 TFLOPS FP32 and 8000 GB/s bandwidth support extensive scientific workloads beyond the RTX 3080 29.8 TFLOPS FP32.
Frequently Asked Questions
How does B200 memory compare to RTX 3080 memory?▾
The B200 provides 180 to 192 GB HBM3e while the RTX 3080 provides 10 to 12 GB GDDR6X. This difference affects maximum model sizes directly.
What FP16 dense performance separates the two GPUs?▾
The B200 lists 2250 TFLOPS dense FP16 and the RTX 3080 lists 59.5 TFLOPS dense FP16. The ratio favors the B200 for dense tensor operations.
How do the TDP values differ between B200 and RTX 3080?▾
The B200 carries a 1000W TDP while the RTX 3080 carries a 320W TDP. Power delivery requirements scale accordingly.
Which GPU offers higher memory bandwidth?▾
The B200 reaches 8000 GB/s and the RTX 3080 reaches 760 GB/s. Bandwidth influences data movement rates in both training and inference.
What FP32 performance do the GPUs deliver?▾
The B200 achieves 75 TFLOPS FP32 and the RTX 3080 achieves 29.8 TFLOPS FP32. General compute tasks reflect this numerical gap.
How does INT8 dense performance compare?▾
The B200 reaches 4500 TOPS dense INT8 and the RTX 3080 reaches 238 TOPS dense INT8. Quantized workloads benefit from the higher B200 figure.
Which is cheaper to rent, the B200 or the RTX 3080?▾
Cloud rental prices for both the B200 and RTX 3080 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 3080?▾
The B200 has 180 to 192 GB of HBM3e memory. The RTX 3080 has 10 to 12 GB of GDDR6X memory.
Can I find B200 and RTX 3080 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 3080?▾
The B200 uses the Blackwell architecture (2024) while the RTX 3080 uses Ampere (2020). The B200 delivers 37.8x the dense FP16 throughput (2,250 vs 59.5 TFLOPS, both without sparsity) and 10.5x the memory bandwidth of the RTX 3080.
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 3080. 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 3080Every 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.