H100 PCIe vs RTX 3070

HoppervsAmpereUpdated 35 days ago

The H100 PCIe emerges as the superior choice for most cloud GPU use cases in AI and machine learning. Its 1979 TFLOPS FP16, 80 to 94 GB VRAM, and 3350 GB/s bandwidth enable workloads infeasible on the RTX 3070, despite the higher $1.25 per hour pricing.

H100 PCIe from $1.90/hr

Specifications Compared

SpecH100RTX-3070
TDP700W220W
VRAM80-94 GB8 GB
CUDA Cores16,8965,888
Memory TypeHBM3GDDR6
ArchitectureHopperAmpere
Form FactorsSXM5, PCIe, NVLPCIe
InterconnectNVLink, PCIe 5.0, InfiniBand
Tensor Cores528184
FP8 Performance3,958 TFLOPS
FP16 Performance1,979 TFLOPS20.3 TFLOPS
FP32 Performance67 TFLOPS20.3 TFLOPS
FP64 Performance34 TFLOPS
INT8 Performance3,958 TOPS
Memory Bandwidth3,350 GB/s448 GB/s

Performance Analysis

The H100's FP16 performance of 1979 TFLOPS vastly exceeds the RTX 3070's 20.3 TFLOPS, making it ideal for machine learning training where half-precision computations accelerate gradient updates in deep neural networks. Its FP32 capability of 67 TFLOPS also surpasses the RTX 3070's 20.3 TFLOPS, supporting precise simulations, though the consumer card's balanced FP16 and FP32 suits graphics rendering equally well. This delta means the H100 processes training epochs far faster for large-scale models.

Memory bandwidth differences prove critical: the H100's 3350 GB/s allows massive batch sizes without bottlenecks, fitting models up to 80 to 94 GB VRAM, whereas the RTX 3070's 448 GB/s and 8 GB limit it to smaller batches and datasets. In inference scenarios, higher bandwidth on the H100 reduces latency for real-time serving of complex models. Power draw of 700W for the H100 versus 220W for the RTX 3070 influences deployment in dense clusters versus single-node setups.

Live Cloud Pricing

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

H100 PCIe

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Hyperstack
Hyperstack
4×NVIDIA H100 PCIe
80GB VRAM
$1.90/GPU/hr
$7.60/hr total (4×)
Available
Hyperstack
Hyperstack
2×NVIDIA H100 PCIe
80GB VRAM
$1.90/GPU/hr
$3.80/hr total (2×)
Available
Hyperstack
Hyperstack
8×NVIDIA H100 PCIe
80GB VRAM
$1.90/GPU/hr
$15.20/hr total (8×)
Available
Hyperstack
Hyperstack
NVIDIA H100 PCIe
80GB VRAM
$1.90/GPU/hr
Available
Hyperstack
Hyperstack
8×NVIDIA H100 PCIe
80GB VRAM
$1.95/GPU/hr
$15.60/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the H100 PCIe

Choose the H100 PCIe for enterprise-scale AI workloads requiring high throughput. Its 80 to 94 GB HBM3 VRAM and 3350 GB/s bandwidth handle large language models during training or inference, where the RTX 3070's 8 GB GDDR6 falls short. At $1.25 per hour starting price, it justifies the cost for teams needing 1979 TFLOPS FP16 performance across multi-GPU NVLink setups.

When to Choose the RTX 3070

Opt for the RTX 3070 in budget-conscious or lightweight applications. Its 20.3 TFLOPS FP16 and FP32 performance suffices for prototyping, gaming, or small-scale inference at $0.04 per hour. The 220W TDP and PCIe form factor enable easy integration in personal or edge computing without the H100's 700W demands.

Use Cases

LLM Training
H100 PCIe

The H100's 1979 TFLOPS FP16 and 80 to 94 GB HBM3 VRAM support training massive language models with large batch sizes. The RTX 3070's 8 GB VRAM and 20.3 TFLOPS cannot accommodate such scales.

LLM Inference
H100 PCIe

High memory bandwidth of 3350 GB/s on the H100 enables low-latency serving of large models. The RTX 3070's 448 GB/s limits it to smaller models.

Fine-tuning
Either

Fine-tuning medium models fits the RTX 3070's 8 GB VRAM and 20.3 TFLOPS for cost savings at $0.04 per hour. Larger fine-tunes benefit from H100's capacity.

Stable Diffusion
RTX 3070

The RTX 3070 handles image generation efficiently with 20.3 TFLOPS and 8 GB VRAM at low $0.09 per hour average. H100 overkill for consumer-scale diffusion tasks.

Scientific Computing
H100 PCIe

H100's 67 TFLOPS FP32 and 3350 GB/s bandwidth accelerate simulations with large datasets. RTX 3070 suits simpler computations only.

Frequently Asked Questions

What is the VRAM difference between H100 PCIe and RTX 3070?

The H100 PCIe provides 80 to 94 GB HBM3 VRAM, while the RTX 3070 has 8 GB GDDR6. This allows the H100 to load significantly larger models. Memory bandwidth follows suit at 3350 GB/s versus 448 GB/s.

How do their FP16 performances compare?

H100 achieves 1979 TFLOPS in FP16, compared to RTX 3070's 20.3 TFLOPS. This gap accelerates AI training on the H100. FP32 is 67 TFLOPS for H100 versus 20.3 TFLOPS for RTX 3070.

What are the cloud rental prices?

H100 PCIe starts at $1.25 per hour, averaging $2.75 per hour across 17 offers. RTX 3070 begins at $0.04 per hour, averaging $0.09 per hour over 4 offers. Prices reflect performance disparities.

Which has higher power consumption?

The H100 draws 700W TDP, far above the RTX 3070's 220W. This suits datacenter cooling for H100. Lower TDP makes RTX 3070 viable for consumer setups.

What architectures do they use?

H100 employs Hopper from 2022 with FP8 at 3958 TFLOPS. RTX 3070 uses Ampere from 2020. Hopper advances enable superior AI compute.

Can RTX 3070 handle large model training?

RTX 3070's 8 GB VRAM limits it to small models, unlike H100's 80 to 94 GB. Its 20.3 TFLOPS FP16 pales against 1979 TFLOPS. Use RTX 3070 for prototyping only.

Which is cheaper to rent, the H100 or the RTX 3070?

Cloud rental prices for both the H100 and RTX 3070 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 H100 have compared to the RTX 3070?

The H100 has 80 to 94 GB of HBM3 memory. The RTX 3070 has 8 GB of GDDR6 memory.

Can I find H100 and RTX 3070 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 H100 and the RTX 3070?

The H100 uses the Hopper architecture (2022) while the RTX 3070 uses Ampere (2020). The H100 delivers 97.5x the FP16 throughput and 7.5x the memory bandwidth of the RTX 3070.

H100 PCIe vs RTX 3070: 97.5x FP16 Gap, 94GB vs 8GB | GPUPerHour