Specifications Compared
| Spec | B200 SXM | B300 SXM6 |
|---|---|---|
| TDP | 1000W | 1400W |
| VRAM | 192 GB | 262 GB |
| CUDA Cores | 18,432 | Not published |
| FP4 (dense) | 9,000 TFLOPS | 13,500 TFLOPS |
| FP8 (dense) | 4,500 TFLOPS | 4,500 TFLOPS |
| Memory Type | HBM3e | HBM3e |
| Architecture | Blackwell | Blackwell Ultra |
| FP16 (dense) | 2,250 TFLOPS | 2,250 TFLOPS |
| Form Factors | SXM | SXM6 |
| INT8 (dense) | 4,500 TOPS | 187.5 TOPS |
| Interconnect | NVLink, PCIe 6.0, InfiniBand | NVLink, PCIe 6.0, InfiniBand |
| Tensor Cores | 576 | Not published |
| FP32 Performance | 75 TFLOPS | 75 TFLOPS |
| FP64 Performance | 37 TFLOPS | 1.25 TFLOPS |
| Memory Bandwidth | 8,000 GB/s | 8,000 GB/s |
| FP4 (with sparsity) | 18,000 TFLOPS | 18,000 TFLOPS |
| FP8 (with sparsity) | 9,000 TFLOPS | 9,000 TFLOPS |
| FP16 (with sparsity) | 4,500 TFLOPS | 4,500 TFLOPS |
| INT8 (with sparsity) | 9,000 TOPS | 375 TOPS |
Performance Analysis
Both GPUs deliver identical FP16 dense performance of 2250 TFLOPS and FP16 with sparsity of 4500 TFLOPS, which means training and inference workloads that rely on FP16 dense operations experience no throughput difference between the variants. The FP4 dense figure reaches 9000 TFLOPS on the B200 SXM compared with 13500 TFLOPS on the B300 SXM6, while FP4 with sparsity remains 18000 TFLOPS for both. Memory bandwidth stays fixed at 8000 GB/s for each GPU so maximum batch sizes scale directly with the 192 GB versus 262 GB VRAM capacities rather than bandwidth differences. FP32 performance matches at 75 TFLOPS on both variants.
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 SXM
1 provider in stock, 1 offer. All B200 SXM offers, price history and alerts
B300 SXM6
1 provider in stock, 1 offer. All B300 SXM6 offers, price history and alerts
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When to Choose the B200 SXM
The B200 SXM suits deployments that prioritize lower TDP of 1000W and sufficient capacity at 192 GB HBM3e for models that fit within that limit. Organizations running workloads that do not require the extra 70 GB of memory on the B300 SXM6 can select the B200 SXM to maintain the same FP16 dense throughput of 2250 TFLOPS at reduced power draw.
When to Choose the B300 SXM6
The B300 SXM6 fits scenarios that demand 262 GB HBM3e to accommodate larger models or higher batch sizes than the 192 GB limit allows. Its FP4 dense rating of 13500 TFLOPS exceeds the 9000 TFLOPS of the B200 SXM while sharing the same 8000 GB/s bandwidth, making it preferable when FP4 dense operations dominate the workload.
Use Cases
The B300 SXM6 supplies 262 GB HBM3e to support larger training batches than the 192 GB limit of the B200 SXM at identical FP16 dense performance of 2250 TFLOPS.
Higher VRAM of 262 GB on the B300 SXM6 enables larger context windows or batch sizes compared with 192 GB on the B200 SXM while FP16 dense throughput remains 2250 TFLOPS on both.
Both GPUs deliver the same FP16 dense rating of 2250 TFLOPS and 8000 GB/s bandwidth so either variant handles fine-tuning equally when model size fits the respective VRAM.
The B200 SXM at 1000W TDP and 192 GB HBM3e meets typical Stable Diffusion requirements without the higher 1400W TDP of the B300 SXM6.
FP4 dense performance of 13500 TFLOPS on the B300 SXM6 surpasses the 9000 TFLOPS of the B200 SXM for precision sensitive scientific workloads.
Frequently Asked Questions
How do FP16 dense figures compare on these two GPUs?▾
FP16 dense performance equals 2250 TFLOPS on the B200 SXM and on the B300 SXM6. FP16 with sparsity also matches at 4500 TFLOPS for both variants.
What TDP values apply to the B200 SXM versus B300 SXM6?▾
The B200 SXM operates at 1000W TDP while the B300 SXM6 operates at 1400W TDP. These figures apply across their respective families.
Which GPU offers higher FP4 dense throughput?▾
The B300 SXM6 reaches 13500 TFLOPS in FP4 dense mode compared with 9000 TFLOPS on the B200 SXM. FP4 with sparsity stays at 18000 TFLOPS for both.
Do the GPUs share the same interconnect options?▾
Both the B200 SXM and B300 SXM6 support NVLink, PCIe 6.0, and InfiniBand interconnects. Form factors differ as SXM versus SXM6.
What INT8 performance do these variants provide?▾
The B200 SXM lists INT8 dense at 4500 TOPS while the B300 SXM6 lists INT8 dense at 187.5 TOPS. Sparsity doubles each of those respective figures.
Which is cheaper to rent, the B200 SXM or the B300 SXM6?▾
Cloud rental prices for both the B200 SXM and B300 SXM6 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 SXM have compared to the B300 SXM6?▾
The B200 SXM has 192 GB of HBM3e memory. The B300 SXM6 has 262 GB of HBM3e memory.
Can I find B200 SXM and B300 SXM6 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 SXM and the B300 SXM6?▾
The B200 SXM uses the Blackwell architecture (2024) while the B300 SXM6 uses Blackwell Ultra (2025). Both deliver the same dense FP16 throughput (2,250 TFLOPS without sparsity) and the same memory bandwidth.
Rent these GPUs
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Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the B200 SXM and the B300 SXM6. 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.
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