H100 PCIe vs RTX 3070 Ti

HoppervsAmpereUpdated 35 days ago

The H100 PCIe emerges as the clear winner for the most common cloud use case of AI and machine learning workloads. Its 1979 TFLOPS FP16, 80 to 94 GB VRAM, and 3350 GB/s bandwidth deliver orders-of-magnitude faster performance than the RTX 3070 Ti's 20.3 TFLOPS and 8 GB, outweighing the cost disparity for serious compute.

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 PCIe vastly outpaces the RTX 3070 Ti in compute throughput: 1979 TFLOPS FP16 versus 20.3 TFLOPS enables training large models in hours rather than days, while 67 TFLOPS FP32 exceeds the RTX 3070 Ti's 20.3 TFLOPS for graphics and simulations. This FP16 to FP32 delta on the H100 highlights tensor core optimizations for AI, where half-precision accelerates training without accuracy loss; the RTX 3070 Ti's balanced 20.3 TFLOPS across both suits general compute but bottlenecks at scale.

Memory differences profoundly impact workloads: 80 to 94 GB HBM3 on the H100 supports batch sizes thousands of times larger than the RTX 3070 Ti's 8 GB GDDR6 limit, preventing out-of-memory errors in LLMs or diffusion models. The 3350 GB/s bandwidth versus 448 GB/s ensures sustained data flow during inference, reducing latency; lower bandwidth on the RTX 3070 Ti throttles large datasets, confining it to smaller batches.

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
Voltage Park
Voltage Park
8×NVIDIA H100 SXM5
80GB VRAM
$1.99/GPU/hr
$15.92/hr total (8×)

Compare real-time pricing across 25+ providers

When to Choose the H100 PCIe

The H100 PCIe excels in enterprise AI training and inference where models exceed 8 GB VRAM, such as billion-parameter LLMs fitting within its 80 to 94 GB HBM3. Its 1979 TFLOPS FP16 and 3350 GB/s bandwidth handle massive parallel jobs efficiently, justifying $1.25 to $2.75 per hour for production-scale deployments.

When to Choose the RTX 3070 Ti

The RTX 3070 Ti suits budget-conscious users for prototyping, gaming, or small-scale ML with its 8 GB GDDR6 and 20.3 TFLOPS FP32 at $0.06 to $0.08 per hour. It performs adequately for tasks under 8 GB memory needs, like fine-tuning compact models or Stable Diffusion on modest images.

Use Cases

LLM Training
H100 PCIe

The H100's 80 to 94 GB HBM3 VRAM and 1979 TFLOPS FP16 handle massive datasets and parameters that exceed the RTX 3070 Ti's 8 GB limit. Bandwidth of 3350 GB/s ensures efficient scaling across large batches.

LLM Inference
H100 PCIe

H100 PCIe supports high-throughput serving with 3958 TFLOPS FP8 and vast memory for production loads. RTX 3070 Ti struggles with models over 8 GB.

Fine-tuning
Either

Small models fit RTX 3070 Ti's 8 GB GDDR6 at low cost; H100 accelerates larger ones with 67 TFLOPS FP32. Choice depends on model size.

Stable Diffusion
RTX 3070 Ti

RTX 3070 Ti generates images quickly at 20.3 TFLOPS FP16 for consumer use under 8 GB. H100 overkill unless scaling to high-res batches.

Scientific Computing
H100 PCIe

H100's 3350 GB/s bandwidth and 700W TDP power complex simulations; RTX 3070 Ti's 448 GB/s limits large-scale HPC.

Frequently Asked Questions

Which GPU has more VRAM: H100 PCIe or RTX 3070 Ti?

The H100 PCIe provides 80 to 94 GB HBM3 VRAM, dwarfing the RTX 3070 Ti's 8 GB GDDR6. This enables the H100 to load enormous models, while the RTX 3070 Ti suits smaller tasks.

How do FP16 performance numbers compare?

H100 PCIe achieves 1979 TFLOPS FP16 versus RTX 3070 Ti's 20.3 TFLOPS, nearly 100 times higher. This gap accelerates AI training significantly on the H100.

What is the price difference in cloud rentals?

H100 PCIe rents from $1.25 per hour averaging $2.75 across 17 offers; RTX 3070 Ti starts at $0.06 per hour averaging $0.08 over 2 offers. Budget tasks favor the RTX.

Can RTX 3070 Ti handle LLM inference?

RTX 3070 Ti manages small LLMs within 8 GB VRAM at 20.3 TFLOPS FP16, but fails on larger ones. H100 PCIe with 80 to 94 GB excels for production inference.

Which has higher memory bandwidth?

H100 PCIe offers 3350 GB/s, over 7 times the RTX 3070 Ti's 448 GB/s. This sustains high batch sizes on H100 for data-intensive workloads.

What are the TDPs of these GPUs?

H100 PCIe consumes 700W TDP for datacenter power; RTX 3070 Ti uses 220W suitable for consumer setups. Higher TDP correlates with H100's superior compute.

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.