B300 SXM6 vs RTX 3060

Blackwell UltravsAmpereUpdated 35 days ago

The B300 emerges as the superior choice for prevalent AI workloads: its 2250 TFLOPS FP16 and 288 GB VRAM crush the RTX 3060's 12.7 TFLOPS and 12 GB limits in training and inference. Despite higher $2.45 per hour pricing, unmatched scalability justifies selection for any serious compute beyond hobbyist tasks.

B300 SXM6 from $7.39/hrRTX 3060 from $0.23/hr

Specifications Compared

SpecB300RTX-3060
TDP1200W170W
VRAM288 GB12 GB
Memory TypeHBM3eGDDR6
ArchitectureBlackwell UltraAmpere
Form FactorsSXMPCIe
InterconnectNVSwitch, NVLink
FP8 Performance4,500 TFLOPS
FP16 Performance2,250 TFLOPS12.7 TFLOPS
FP32 Performance90 TFLOPS12.7 TFLOPS
FP64 Performance45 TFLOPS
INT8 Performance4,500 TOPS
Memory Bandwidth12,000 GB/s360 GB/s

Performance Analysis

Raw compute reveals stark disparities: the B300 achieves 2250 TFLOPS in FP16 and 90 TFLOPS in FP32, compared to the RTX 3060's matched 12.7 TFLOPS in both formats. This FP16 dominance, over 177 times higher, accelerates inference tasks where half-precision suffices, while the B300's FP32 edge of roughly 7 times supports training phases demanding full precision. The FP8 capability of 4500 TFLOPS on the B300 further optimizes quantized inference, unavailable on the RTX 3060. Memory specs amplify these advantages: 288 GB HBM3e versus 12 GB GDDR6 enables the B300 to handle models exceeding 100 GB, preventing out-of-memory errors in large language models. Bandwidth at 12000 GB/s, 33 times the RTX 3060's 360 GB/s, sustains massive batch sizes during training, reducing iteration times from days to hours. Power draw underscores the divide: the B300's 1200W TDP suits datacenter cooling, while the RTX 3060's 170W fits desktops. Interconnects like NVSwitch and NVLink on the B300 enable multi-GPU scaling, absent on the PCIe-bound RTX 3060.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

B300 SXM6

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA B300 SXM6
262GB VRAM
$7.39/GPU/hr
VERDA
VERDA
8×NVIDIA B300 SXM6
262GB VRAM
$7.50/GPU/hr
$60.00/hr total (8×)
Available
Scaleway
Scaleway
8×NVIDIA B300 SXM6
262GB VRAM
$8.73/GPU/hr
$69.84/hr total (8×)
Available

RTX 3060

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA GeForce RTX 3060
12GB VRAM
$0.23/GPU/hr
Available
Vast.ai
Vast.ai
2×NVIDIA GeForce RTX 3060
12GB VRAM
$0.23/GPU/hr
$0.45/hr total (2×)
Available
Vast.ai
Vast.ai
2×NVIDIA GeForce RTX 3060
12GB VRAM
$0.23/GPU/hr
$0.45/hr total (2×)
Available
Vast.ai
Vast.ai
2×NVIDIA GeForce RTX 3060
12GB VRAM
$0.23/GPU/hr
$0.45/hr total (2×)
Available

Compare real-time pricing across 25+ providers

When to Choose the B300 SXM6

The B300 excels in enterprise AI deployments: its 288 GB VRAM accommodates full-parameter training of models like 1-trillion-parameter LLMs, impossible on 12 GB setups. High bandwidth of 12000 GB/s supports batch sizes over 1000, ideal for production inference at scale. Rent it from $2.45 per hour when multi-GPU clusters via NVLink are needed for scientific simulations or fine-tuning massive datasets.

When to Choose the RTX 3060

The RTX 3060 suits budget-conscious prototyping: at $0.03 per hour, it handles small models under 10 GB with 12.7 TFLOPS FP16 performance. Low 170W TDP enables easy local or edge deployment without specialized cooling. Choose it for Stable Diffusion image generation or lightweight inference where cost trumps speed.

Use Cases

LLM Training
B300 SXM6

The B300's 288 GB HBM3e VRAM and 90 TFLOPS FP32 handle massive datasets and full-precision gradients for billion-parameter models. The RTX 3060's 12 GB limits it to toy-scale training.

LLM Inference
B300 SXM6

4500 TFLOPS FP8 and 12000 GB/s bandwidth on the B300 enable high-throughput serving of large models. The RTX 3060 struggles with latency on models over 7 GB.

Fine-tuning
B300 SXM6

2250 TFLOPS FP16 supports efficient adapter tuning on 100 GB+ models with the B300's vast memory. RTX 3060 suffices only for models under 10 GB.

Stable Diffusion
RTX 3060

RTX 3060's 12.7 TFLOPS FP16 generates images quickly at $0.03 per hour for batch sizes under 32. B300's overkill for consumer diffusion tasks.

Scientific Computing
B300 SXM6

B300's 90 TFLOPS FP32 and NVSwitch interconnect scale simulations across nodes. RTX 3060 limits to single-GPU runs under 12 GB data.

Frequently Asked Questions

Which GPU has more VRAM: B300 or RTX 3060?

The B300 offers 288 GB HBM3e VRAM, 24 times more than the RTX 3060's 12 GB GDDR6. This enables handling of enormous models on the B300. The RTX 3060 suits smaller workloads.

How do FP16 performances compare between B300 and RTX 3060?

B300 delivers 2250 TFLOPS FP16, over 177 times the RTX 3060's 12.7 TFLOPS. This gap accelerates AI inference dramatically on the B300. Training sees less disparity due to FP32 focus.

What are the cloud rental prices for these GPUs?

B300 SXM6 starts at $2.45 per hour, averaging $6.44 across 7 providers. RTX 3060 begins at $0.03 per hour, averaging $0.07 across 11 offers. Pricing reflects capability differences.

Is the B300 better for large model training?

Yes, the B300's 288 GB VRAM and 12000 GB/s bandwidth support batch sizes impossible on RTX 3060's 12 GB and 360 GB/s. FP32 at 90 TFLOPS ensures precision stability. Consumer GPUs cap at small scales.

What is the power consumption difference?

B300 requires 1200W TDP for datacenter use, versus RTX 3060's 170W for desktops. Higher TDP correlates with B300's 2250 TFLOPS FP16 output. Efficiency per watt favors RTX 3060 for light tasks.

Can RTX 3060 handle LLM inference?

RTX 3060 manages inference for models under 7 GB at 12.7 TFLOPS FP16. Larger LLMs exceed its 12 GB VRAM. B300 serves 100 GB+ models seamlessly.

Which is cheaper to rent, the B300 or the RTX 3060?

Cloud rental prices for both the B300 and RTX 3060 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 3060?

The B300 has 288 GB of HBM3e memory. The RTX 3060 has 12 GB of GDDR6 memory.

Can I find B300 and RTX 3060 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 3060?

The B300 uses the Blackwell Ultra architecture (2025) while the RTX 3060 uses Ampere (2021). The B300 delivers 177.2x the FP16 throughput and 33.3x the memory bandwidth of the RTX 3060.