A100 SXM4 80GB vs RTX 3060 Ti

AmperevsAmpereUpdated 35 days ago

The A100 SXM4 80GB emerges as the clear winner for most AI workloads like LLM training and inference due to its 80 GB VRAM, 312 TFLOPS FP16, and 2039 GB/s bandwidth, enabling large-scale efficiency unmatched by the RTX 3060 Ti's consumer specs.

A100 SXM4 80GB from $0.73/hrRTX 3060 Ti from $0.23/hr

Specifications Compared

SpecA100RTX-3060
TDP400W170W
VRAM40-80 GB12 GB
CUDA Cores6,9123,584
Memory TypeHBM2eGDDR6
ArchitectureAmpereAmpere
Form FactorsSXM4, PCIePCIe
InterconnectNVLink, PCIe 4.0, InfiniBand
Tensor Cores432112
FP16 Performance312 TFLOPS12.7 TFLOPS
FP32 Performance19.5 TFLOPS12.7 TFLOPS
FP64 Performance9.7 TFLOPS
INT8 Performance624 TOPS
Memory Bandwidth2,039 GB/s360 GB/s

Performance Analysis

The A100 SXM4 80GB outperforms the RTX 3060 Ti dramatically in FP16 at 312 TFLOPS versus 12.7 TFLOPS, making it ideal for mixed-precision training where speedups occur from lower precision computations. FP32 performance favors the A100 slightly at 19.5 TFLOPS over 12.7 TFLOPS, benefiting single-precision inference and scientific simulations. This delta translates to faster convergence in deep learning training on the A100, often reducing epochs by factors of 20 or more for large neural networks. The A100's 80 GB HBM2e VRAM supports models exceeding 12 GB, such as large language models, while the RTX 3060 Ti limits users to smaller architectures or gradient checkpointing. Memory bandwidth of 2039 GB/s on the A100 versus 360 GB/s on the RTX 3060 Ti allows larger batch sizes without bottlenecks, improving utilization to over 90 percent in training loops compared to 50-70 percent on the RTX 3060 Ti. Higher TDP of 400W on the A100 sustains peak performance longer than the 170W RTX 3060 Ti in prolonged workloads.

Live Cloud Pricing

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

A100 SXM4 80GB

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA A100 SXM4 80GB
80GB VRAM
$0.73/GPU/hr
Available
LeaderGPU
LeaderGPU
8×NVIDIA A100 PCIe 80GB
80GB VRAM
$0.90/GPU/hr
$7.20/hr total (8×)
Available
Vast.ai
Vast.ai
2×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.00/GPU/hr
$2.00/hr total (2×)
Available
Denvr
Denvr
4×NVIDIA A100 PCIe 80GB
80GB VRAM
$1.15/GPU/hr
$4.60/hr total (4×)
Denvr
Denvr
8×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.15/GPU/hr
$9.20/hr total (8×)

RTX 3060 Ti

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA GeForce RTX 3060
12GB VRAM
$0.23/GPU/hr
Available
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

Compare real-time pricing across 25+ providers

When to Choose the A100 SXM4 80GB

Choose the A100 SXM4 80GB for enterprise-scale AI training and inference requiring over 40 GB VRAM, such as fine-tuning billion-parameter LLMs. Its 2039 GB/s bandwidth and 312 TFLOPS FP16 excel in multi-GPU setups via NVLink and InfiniBand, scaling to clusters. Cloud users prioritizing throughput over cost select it at $0.45 per hour starting price for production pipelines.

When to Choose the RTX 3060 Ti

Opt for the RTX 3060 Ti in budget-constrained prototyping or inference on models under 12 GB VRAM, where 12.7 TFLOPS FP16 suffices for quick iterations. Its low $0.03 per hour pricing and 170W TDP suit personal projects or small-scale Stable Diffusion generation. Developers avoid datacenter complexity with PCIe form factor for simple cloud deployments.

Use Cases

LLM Training
A100 SXM4 80GB

The A100's 80 GB HBM2e VRAM and 312 TFLOPS FP16 handle massive parameter counts and large batches, while the RTX 3060 Ti's 12 GB limits scale.

LLM Inference
A100 SXM4 80GB

A100 supports high-concurrency inference with 2039 GB/s bandwidth for real-time serving of large models; RTX 3060 Ti suits only small models under 12 GB.

Fine-tuning
A100 SXM4 80GB

80 GB VRAM on A100 accommodates full model loading for efficient fine-tuning; RTX 3060 Ti requires techniques like LoRA due to 12 GB constraint.

Stable Diffusion
RTX 3060 Ti

RTX 3060 Ti generates images effectively with 12 GB GDDR6 at low $0.03 per hour cost; A100 overkill for single-user creative tasks.

Scientific Computing
A100 SXM4 80GB

A100's 19.5 TFLOPS FP32 and NVLink interconnect accelerate simulations; RTX 3060 Ti's 12.7 TFLOPS FP32 falls short for complex HPC jobs.

Frequently Asked Questions

Which GPU has more VRAM: A100 SXM4 80GB or RTX 3060 Ti?

The A100 SXM4 80GB provides 80 GB HBM2e VRAM. The RTX 3060 Ti offers 12 GB GDDR6. This difference allows the A100 to load models over six times larger.

How do FP16 performance levels compare?

A100 SXM4 80GB achieves 312 TFLOPS in FP16. RTX 3060 Ti reaches 12.7 TFLOPS. The A100 delivers nearly 25 times higher throughput for training.

What are the cloud rental prices?

A100 SXM4 80GB starts at $0.45 per hour, averaging $1.33 per hour across 29 offers. RTX 3060 Ti begins at $0.03 per hour, averaging $0.06 per hour across 2 offers.

Does memory bandwidth differ significantly?

A100 SXM4 80GB has 2039 GB/s bandwidth. RTX 3060 Ti provides 360 GB/s. This enables the A100 to process data over five times faster for large batches.

Which is better for power efficiency?

RTX 3060 Ti uses 170W TDP for lighter tasks. A100 SXM4 80GB requires 400W but delivers superior performance per watt in high-throughput AI.

Can RTX 3060 Ti handle large LLMs?

RTX 3060 Ti's 12 GB VRAM limits it to small LLMs or quantized models. A100 SXM4 80GB supports full-precision large models without compromises.

Which is cheaper to rent, the A100 or the RTX 3060?

Cloud rental prices for both the A100 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 A100 have compared to the RTX 3060?

The A100 has 40 to 80 GB of HBM2e memory. The RTX 3060 has 12 GB of GDDR6 memory.

Can I find A100 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 A100 and the RTX 3060?

The A100 uses the Ampere architecture (2020) while the RTX 3060 uses Ampere (2021). The A100 delivers 24.6x the FP16 throughput and 5.7x the memory bandwidth of the RTX 3060.

A100 SXM4 80GB vs RTX 3060 Ti: 80GB vs 12GB | GPUPerHour