A100 SXM4 40GB vs RTX 3060

AmperevsAmpereUpdated 35 days ago

The A100 emerges as the winner for primary AI and ML use cases like training and large-scale inference, thanks to 312 TFLOPS FP16, 40 GB VRAM, and 2039 GB/s bandwidth that outperform RTX 3060's consumer constraints by wide margins. Cost at $2.63 per hour average is justified for professional throughput, while RTX 3060 serves only entry-level needs.

A100 SXM4 40GB from $0.73/hrRTX 3060 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

Compute disparities define these GPUs' capabilities: the A100 achieves 312 TFLOPS in FP16, dwarfing the RTX 3060's 12.7 TFLOPS, which accelerates deep learning training where half-precision dominates. Its 19.5 TFLOPS FP32 outperforms the RTX 3060's 12.7 TFLOPS, benefiting scientific simulations and inference requiring full precision. This FP16 to FP32 ratio on A100, roughly 16:1, optimizes mixed-precision training, unlike the RTX 3060's balanced 1:1 ratio suited to graphics.

Memory specs profoundly impact workloads: A100's 40 GB HBM2e versus 12 GB GDDR6 supports vastly larger models and batch sizes, preventing out-of-memory errors in transformer training. Bandwidth at 2039 GB/s on A100, compared to 360 GB/s, reduces data transfer bottlenecks, enabling 30% to 50% faster inference on large datasets. The A100's 400W TDP sustains prolonged peaks, while RTX 3060's 170W limits endurance in intensive sessions.

Interconnects further differentiate them: A100's NVLink, PCIe 4.0, and InfiniBand enable scalable multi-GPU clusters, absent on RTX 3060.

Live Cloud Pricing

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

A100 SXM4 40GB

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×)

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 A100 SXM4 40GB

The A100 excels in enterprise-scale AI training and large model deployment. Its 40 GB VRAM handles models exceeding 12 GB, such as billion-parameter LLMs, while 312 TFLOPS FP16 cuts training time significantly. NVLink and InfiniBand support distributed computing across nodes, essential for research labs or production inference at scale.

High-bandwidth 2039 GB/s ensures efficient data flow for massive batches, making A100 preferable despite $2.63 per hour average cost.

When to Choose the RTX 3060

The RTX 3060 suits budget prototyping, gaming-integrated ML, or lightweight inference. At $0.03 per hour average, its 12 GB VRAM and 12.7 TFLOPS FP16 manage small-to-medium models efficiently, like fine-tuning or Stable Diffusion generation.

Lower 170W TDP fits edge deployments or personal workstations, where A100's 400W and data center form factors prove impractical.

Use Cases

LLM Training
A100 SXM4 40GB

A100's 40 GB VRAM and 312 TFLOPS FP16 handle massive parameter counts without issues. RTX 3060's 12 GB limits it to tiny models.

LLM Inference
A100 SXM4 40GB

2039 GB/s bandwidth on A100 supports high-throughput serving of large models. RTX 3060 struggles with batch sizes beyond small inferences.

Fine-tuning
Either

RTX 3060 suffices for datasets under 12 GB at 12.7 TFLOPS FP16. A100 accelerates larger fine-tunes with superior specs.

Stable Diffusion
RTX 3060

RTX 3060's 12 GB GDDR6 and 12.7 TFLOPS FP16 generate images efficiently at low $0.03 per hour cost. A100 overkill for consumer diffusion.

Scientific Computing
A100 SXM4 40GB

A100's 19.5 TFLOPS FP32 outperforms RTX 3060's 12.7 TFLOPS for precise simulations. Higher bandwidth aids complex datasets.

Frequently Asked Questions

What is the VRAM difference between A100 SXM4 40GB and RTX 3060?

A100 offers 40 GB HBM2e VRAM, far exceeding RTX 3060's 12 GB GDDR6. This enables larger models on A100. Bandwidth follows suit at 2039 GB/s versus 360 GB/s.

Which GPU has higher FP16 performance?

A100 delivers 312 TFLOPS FP16, over 24 times RTX 3060's 12.7 TFLOPS. This boosts AI training speed dramatically. FP32 is 19.5 TFLOPS on A100 versus 12.7 TFLOPS.

How do cloud prices compare?

RTX 3060 starts at $0.03 per hour, averaging $0.07 across ten offers. A100 begins at $1.00 per hour, averaging $2.63 across five offers. Choice depends on workload intensity.

What are the TDP ratings?

A100 consumes 400W for sustained high performance. RTX 3060 uses 170W, better for power-sensitive setups. This affects cooling and rental viability.

Can RTX 3060 replace A100 for ML training?

RTX 3060 handles small-scale training with 12.7 TFLOPS FP16 but falters on large models due to 12 GB VRAM. A100's 40 GB and 312 TFLOPS make it essential for serious work.

Do they share the same architecture?

Both use Ampere, A100 from 2020 and RTX 3060 from 2021. Datacenter optimizations give A100 advantages in interconnects like NVLink. Consumer focus limits RTX 3060 scaling.

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 40GB vs RTX 3060: 24.6x FP16 Gap, 80GB vs 12GB | GPUPerHour