A100 PCIe 80GB vs RTX 5070 Ti

AmperevsBlackwellUpdated 35 days ago

The NVIDIA A100 PCIe 80GB emerges as the winner for prevalent AI workloads like LLM training and inference: 80 GB VRAM and 312 TFLOPS FP16 outperform RTX 5070 Ti's 12 GB and 40.6 TFLOPS, handling production-scale models despite higher $2.06 per hour average cost.

A100 PCIe 80GB from $0.73/hr

Specifications Compared

SpecA100RTX-5070
TDP400W250W
VRAM40-80 GB12 GB
CUDA Cores6,9126,144
Memory TypeHBM2eGDDR7
ArchitectureAmpereBlackwell
Form FactorsSXM4, PCIePCIe
InterconnectNVLink, PCIe 4.0, InfiniBand
Tensor Cores432192
FP16 Performance312 TFLOPS40.6 TFLOPS
FP32 Performance19.5 TFLOPS40.6 TFLOPS
FP64 Performance9.7 TFLOPS
INT8 Performance624 TOPS650 TOPS
Memory Bandwidth2,039 GB/s448 GB/s

Performance Analysis

Memory capacity defines a key divide: the A100 PCIe 80GB's 80 GB HBM2e supports massive models and batch sizes, while the RTX 5070 Ti's 12 GB GDDR7 limits it to smaller workloads. Bandwidth reinforces this: 2039 GB/s on A100 enables rapid data movement for training large neural networks, compared to 448 GB/s on RTX 5070 Ti, which constrains throughput and increases latency for memory-intensive tasks. FP16 performance favors A100 at 312 TFLOPS versus 40.6 TFLOPS: this accelerates mixed-precision training by up to 7.7 times, vital for LLMs. The FP32 delta shows RTX 5070 Ti at 40.6 TFLOPS over A100's 19.5 TFLOPS, suiting graphics or single-precision simulation better. For inference, A100's VRAM handles larger batches without swapping, reducing overhead; RTX 5070 Ti suits low-latency small-model deployment. Power efficiency tilts to RTX 5070 Ti's 250 W versus 400 W, lowering operational costs in scaled clusters.

Live Cloud Pricing

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

A100 PCIe 80GB

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA A100 SXM4 80GB
80GB VRAM
$0.73/GPU/hr
Available
Vast.ai
Vast.ai
2×NVIDIA A100 SXM4 80GB
80GB VRAM
$0.73/GPU/hr
$1.47/hr total (2×)
Available
LeaderGPU
LeaderGPU
8×NVIDIA A100 PCIe 80GB
80GB VRAM
$0.90/GPU/hr
$7.20/hr total (8×)
Available
Vast.ai
Vast.ai
NVIDIA A100 SXM4 80GB
80GB VRAM
$1.07/GPU/hr
Available
Denvr
Denvr
8×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.15/GPU/hr
$9.20/hr total (8×)

Compare real-time pricing across 25+ providers

When to Choose the A100 PCIe 80GB

Choose the NVIDIA A100 PCIe 80GB for large-scale LLM training or fine-tuning: its 80 GB VRAM and 2039 GB/s bandwidth accommodate models exceeding 12 GB, enabling batch sizes that RTX 5070 Ti cannot match. Multi-GPU setups benefit from NVLink and PCIe 4.0 interconnects, scaling to clusters for scientific computing. Cloud pricing at $0.89 per hour justifies it when throughput demands 312 TFLOPS FP16.

When to Choose the RTX 5070 Ti

Opt for the NVIDIA GeForce RTX 5070 Ti in budget-constrained inference or creative tasks: 12 GB GDDR7 and $0.10 per hour pricing deliver value for Stable Diffusion or small-model serving. Its 250 W TDP and 40.6 TFLOPS FP32 excel in gaming-adjacent workloads or single-precision compute. Blackwell architecture provides modern RT cores absent in Ampere.

Use Cases

LLM Training
A100 PCIe 80GB

A100 PCIe 80GB's 80 GB VRAM and 312 TFLOPS FP16 support large models and batches unattainable on 12 GB RTX 5070 Ti.

LLM Inference
A100 PCIe 80GB

High 2039 GB/s bandwidth on A100 enables efficient large-model serving; RTX 5070 Ti suits only sub-12 GB models.

Fine-tuning
A100 PCIe 80GB

A100's capacity handles full parameter sets; 40.6 TFLOPS on RTX 5070 Ti limits to lightweight adapters.

Stable Diffusion
RTX 5070 Ti

RTX 5070 Ti's Blackwell RT cores and low $0.10 per hour cost accelerate image generation efficiently.

Scientific Computing
A100 PCIe 80GB

A100's 80 GB VRAM and NVLink scaling manage complex simulations; RTX 5070 Ti's 12 GB restricts dataset sizes.

Frequently Asked Questions

Which GPU has more VRAM?

The NVIDIA A100 PCIe 80GB provides 80 GB HBM2e VRAM. The RTX 5070 Ti offers 12 GB GDDR7. This gap favors A100 for memory-heavy AI tasks.

What are the cloud rental prices?

A100 PCIe 80GB rents from $0.89 per hour, averaging $2.06 per hour across 29 offers. RTX 5070 Ti starts at $0.10 per hour, averaging $0.19 per hour across 2 offers.

Which performs better in FP16?

A100 PCIe 80GB achieves 312 TFLOPS FP16. RTX 5070 Ti reaches 40.6 TFLOPS. A100 suits high-precision training.

What is the memory bandwidth difference?

A100 PCIe 80GB delivers 2039 GB/s. RTX 5070 Ti provides 448 GB/s. Higher bandwidth on A100 supports larger batches.

Which has lower power consumption?

RTX 5070 Ti uses 250 W TDP. A100 PCIe 80GB requires 400 W. RTX 5070 Ti reduces energy costs in deployments.

Is RTX 5070 Ti newer?

RTX 5070 Ti uses Blackwell architecture from 2025. A100 PCIe 80GB relies on Ampere from 2020. Newer design aids RTX efficiency.

Which is cheaper to rent, the A100 or the RTX 5070?

Cloud rental prices for both the A100 and RTX 5070 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 A100 have compared to the RTX 5070?

The A100 has 40 to 80 GB of HBM2e memory. The RTX 5070 has 12 GB of GDDR7 memory.

Can I find A100 and RTX 5070 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 A100 and the RTX 5070?

The A100 uses the Ampere architecture (2020) while the RTX 5070 uses Blackwell (2025). The A100 delivers 7.7x the FP16 throughput and 4.6x the memory bandwidth of the RTX 5070.

A100 PCIe 80GB vs RTX 5070 Ti: 80GB vs 12GB | GPUPerHour