Specifications Compared
| Spec | B300 | RTX-4070 |
|---|---|---|
| TDP | 1200W | 200W |
| VRAM | 288 GB | 12 GB |
| Memory Type | HBM3e | GDDR6X |
| Architecture | Blackwell Ultra | Ada Lovelace |
| Form Factors | SXM | PCIe |
| Interconnect | NVSwitch, NVLink | |
| FP8 Performance | 4,500 TFLOPS | |
| FP16 Performance | 2,250 TFLOPS | 29.1 TFLOPS |
| FP32 Performance | 90 TFLOPS | 29.1 TFLOPS |
| FP64 Performance | 45 TFLOPS | |
| INT8 Performance | 4,500 TOPS | 466 TOPS |
| Memory Bandwidth | 12,000 GB/s | 504 GB/s |
Performance Analysis
The NVIDIA B300 SXM6 vastly outpaces the RTX 4070 in compute throughput: 2250 TFLOPS FP16 on B300 compared to 29.1 TFLOPS on RTX 4070 enables dramatically faster AI model training and inference. This FP16 delta means training large language models completes over 77 times quicker on B300, while FP32 at 90 TFLOPS versus 29.1 TFLOPS accelerates general-purpose simulations. The B300's FP8 capability at 4500 TFLOPS further optimizes low-precision inference tasks common in deployment. Memory specifications define real-world usability: 288 GB HBM3e VRAM on B300 handles models exceeding 100 billion parameters without offloading, whereas 12 GB GDDR6X on RTX 4070 limits users to smaller batches or quantized models. Bandwidth at 12000 GB/s versus 504 GB/s allows B300 to process batch sizes 20 times larger, reducing per-token latency in inference by minimizing data movement bottlenecks. Power draw reflects this: 1200W TDP for B300 demands robust cooling, contrasting RTX 4070's efficient 200W.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
B300 SXM6
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
![]() RunPod | NVIDIA B300 SXM6 262GB VRAM | 262GB | 0 vCPU 0GB RAM | 🌍global | $7.39/GPU/hr | |||
VERDA | NVIDIA B300 SXM6 262GB VRAM | 262GB | 30 vCPU 255GB RAM | Helsinki | $7.50/GPU/hr | Available | ||
VERDA | 2×NVIDIA B300 SXM6 262GB VRAM | 262GB | 60 vCPU 510GB RAM | Helsinki | $7.50/GPU/hr $15.00/hr total (2×) | Available | ||
VERDA | 8×NVIDIA B300 SXM6 262GB VRAM | 262GB | 240 vCPU 2040GB RAM | Helsinki | $7.50/GPU/hr $60.00/hr total (8×) | Available | ||
Scaleway | 8×NVIDIA B300 SXM6 262GB VRAM | 262GB | 224 vCPU 3840GB RAM 22352GB Storage | Paris | $8.73/GPU/hr $69.84/hr total (8×) | Available |
RTX 4070
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
![]() RunPod | NVIDIA GeForce RTX 4070 Ti 12GB VRAM | 12GB | 6 vCPU 30GB RAM | 🌍global | $0.50/GPU/hr |
When to Choose the B300 SXM6
Opt for the NVIDIA B300 SXM6 in large-scale AI training where 288 GB HBM3e VRAM accommodates full-precision models up to 1 trillion parameters. Its 12000 GB/s bandwidth sustains massive batch sizes in distributed setups via NVLink and NVSwitch, ideal for research labs or enterprises running FP16 workloads at 2250 TFLOPS. Cloud deployments at $2.45 per hour justify the cost for production inference on Blackwell Ultra hardware.
When to Choose the RTX 4070
The NVIDIA GeForce RTX 4070 suits budget-conscious prototyping or gaming with its 12 GB GDDR6X VRAM and 200W TDP fitting standard PCIe slots. It excels in fine-tuning small models under 7 billion parameters or Stable Diffusion at 29.1 TFLOPS FP16, where $0.07 per hour pricing across cloud offers minimizes expenses. Developers testing inference on quantized LLMs find its efficiency unmatched for single-user tasks.
Use Cases
B300's 288 GB HBM3e VRAM and 2250 TFLOPS FP16 handle massive datasets and models without sharding. RTX 4070's 12 GB limits it to tiny models.
12000 GB/s bandwidth on B300 supports large batch sizes for low-latency serving of 100B+ parameter models. RTX 4070 suits only quantized small LLMs.
B300 excels for full models with 288 GB VRAM; RTX 4070 suffices for datasets under 12 GB at 29.1 TFLOPS FP16.
RTX 4070's 12 GB GDDR6X generates images efficiently at 504 GB/s bandwidth. B300 overkill for consumer diffusion tasks.
B300's 90 TFLOPS FP32 and NVLink scale simulations across clusters. RTX 4070 adequate only for single-node FP32 at 29.1 TFLOPS.
Frequently Asked Questions
What is the VRAM capacity of NVIDIA B300 SXM6 versus RTX 4070?▾
NVIDIA B300 SXM6 provides 288 GB HBM3e VRAM for enormous models. RTX 4070 offers 12 GB GDDR6X, suitable for smaller workloads.
How do cloud prices compare for these GPUs?▾
B300 SXM6 starts at $2.45 per hour with $6.44 average across seven offers. RTX 4070 begins at $0.07 per hour averaging $0.14 over two offers.
Which has higher FP16 performance?▾
B300 achieves 2250 TFLOPS FP16, over 77 times RTX 4070's 29.1 TFLOPS. This gap accelerates AI training significantly.
What are the power requirements?▾
B300 SXM6 consumes 1200W TDP for datacenter use. RTX 4070 uses 200W, ideal for desktops or light servers.
Can RTX 4070 handle large LLM inference?▾
RTX 4070's 12 GB VRAM restricts it to models under 7B parameters or heavy quantization. B300's 288 GB supports full-scale deployment.
What interconnects does B300 support?▾
B300 uses NVSwitch and NVLink for multi-GPU scaling. RTX 4070 lacks dedicated interconnects, relying on PCIe.
Which is cheaper to rent, the B300 or the RTX 4070?▾
Cloud rental prices for both the B300 and RTX 4070 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 B300 have compared to the RTX 4070?▾
The B300 has 288 GB of HBM3e memory. The RTX 4070 has 12 GB of GDDR6X memory.
Can I find B300 and RTX 4070 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 B300 and the RTX 4070?▾
The B300 uses the Blackwell Ultra architecture (2025) while the RTX 4070 uses Ada Lovelace (2023). The B300 delivers 77.3x the FP16 throughput and 23.8x the memory bandwidth of the RTX 4070.
