A100 vs A30

AmperevsAmpereUpdated 36 days ago

The A100 emerges as the superior choice for most AI workloads: its 312 TFLOPS FP16, 40-80 GB VRAM, and 2039 GB/s bandwidth dominate training and large-model inference, justifying $0.60-$1.93 per hour pricing over the A30's limitations. Only power-constrained inference favors the A30.

A100 from $0.73/hr

Specifications Compared

SpecA100A30
TDP400W165W
VRAM40-80 GB24 GB
CUDA Cores6,9123,584
Memory TypeHBM2eHBM2
ArchitectureAmpereAmpere
Form FactorsSXM4, PCIePCIe
InterconnectNVLink, PCIe 4.0, InfiniBandNVLink
Tensor Cores432224
FP16 Performance312 TFLOPS10.3 TFLOPS
FP32 Performance19.5 TFLOPS10.3 TFLOPS
FP64 Performance9.7 TFLOPS5.2 TFLOPS
INT8 Performance624 TOPS165 TOPS
Memory Bandwidth2,039 GB/s933 GB/s

Performance Analysis

The A100 outperforms the A30 significantly in FP16 at 312 TFLOPS versus 10.3 TFLOPS, accelerating deep learning training where half-precision dominates: this enables faster iterations on large datasets. The A30's balanced 10.3 TFLOPS FP16 and FP32 suits inference tasks requiring precise FP32 computations, but it trails the A100's 19.5 TFLOPS FP32 for hybrid workloads.

Memory bandwidth of 2039 GB/s on the A100 supports larger batch sizes in training compared to the A30's 933 GB/s, reducing data loading bottlenecks in models like transformers with billions of parameters. The A100's 40-80 GB HBM2e VRAM handles massive models without splitting, while the A30's 24 GB HBM2 limits it to smaller batches or model parallelism.

Power efficiency favors the A30 at 165W TDP versus the A100's 400W, yielding lower operational costs in dense inference servers: real-world inference throughput may approach parity per watt despite raw spec deficits. Training clusters benefit from the A100's NVLink and PCIe 4.0 for multi-GPU scaling, outperforming the A30's PCIe and NVLink setup.

Live Cloud Pricing

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

A100

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

Choose the A100 for large-scale LLM training or fine-tuning where 312 TFLOPS FP16 and 40-80 GB VRAM enable handling models exceeding 24 GB: its 2039 GB/s bandwidth sustains high throughput. Cloud users access it from $0.60 per hour across 58 offers, ideal for compute-intensive scientific simulations requiring 19.5 TFLOPS FP32.

Multi-GPU setups leverage the A100's SXM4 form factor and InfiniBand for clusters, outperforming single-node inference.

When to Choose the A30

Select the A30 for cost-sensitive inference deployments with its 165W TDP enabling higher rack density than the A100's 400W: 10.3 TFLOPS FP16 suffices for serving models under 24 GB HBM2. Balanced FP16 and FP32 performance fits real-time analytics without excessive power draw.

PCIe form factor simplifies integration in edge or virtualized environments lacking NVLink scaling needs.

Use Cases

LLM Training
A100

A100's 312 TFLOPS FP16 and 40-80 GB VRAM handle massive datasets and models far beyond A30's 10.3 TFLOPS and 24 GB.

LLM Inference
A30

A30's 165W TDP and balanced 10.3 TFLOPS FP16/FP32 support efficient serving of models under 24 GB; A100's power draw is excessive for steady inference.

Fine-tuning
A100

A100's 2039 GB/s bandwidth and higher FP32 at 19.5 TFLOPS accelerate iterations on parameter-heavy models needing over 24 GB VRAM.

Stable Diffusion
A100

A100's 312 TFLOPS FP16 processes high-resolution generations faster with 40-80 GB VRAM for larger batches than A30's 24 GB.

Scientific Computing
A100

A100's 19.5 TFLOPS FP32 and NVLink scaling excel in simulations; A30's lower specs limit complex HPC workloads.

Frequently Asked Questions

What is the VRAM difference between A100 and A30?

The A100 provides 40-80 GB HBM2e VRAM, while the A30 offers 24 GB HBM2. This allows the A100 to manage larger models without partitioning.

How do FP16 performance levels compare?

A100 achieves 312 TFLOPS FP16 versus A30's 10.3 TFLOPS. The gap favors A100 for training acceleration.

What are the power consumption ratings?

A100 has a 400W TDP; A30 uses 165W. Lower TDP on A30 suits dense inference racks.

Is cloud pricing available for both?

A100 starts at $0.60 per hour across 58 offers, averaging $1.93 per hour. A30 has no live offers currently.

Which has higher memory bandwidth?

A100 delivers 2039 GB/s versus A30's 933 GB/s. Higher bandwidth on A100 supports bigger batch sizes.

What form factors do they support?

A100 uses SXM4 and PCIe; A30 is PCIe only. A100 offers more flexibility for high-end clusters.

Which is cheaper to rent, the A100 or the A30?

Cloud rental prices for both the A100 and A30 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 A30?

The A100 has 40 to 80 GB of HBM2e memory. The A30 has 24 GB of HBM2 memory.

Can I find A100 and A30 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 A30?

The A100 uses the Ampere architecture (2020) while the A30 uses Ampere (2021). The A100 delivers 30.3x the FP16 throughput and 2.2x the memory bandwidth of the A30.

A100 vs A30: 30.3x FP16 Gap, 80GB vs 24GB | GPUPerHour