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Nvidia A100

Ampere-based data center GPU widely used for AI training, HPC workloads, and large-scale inference.

Release

2020

GPU Class

Data Center / AI Accelerator

Architecture

Ampere

PRICE SNAPSHOT

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On-premise Module

Turnkey System

Cloud Pricing
(per GPU/hr)

chip identity

nvidia-a100-80-gb-og-social-1200x630-removebg-preview

On-premise Module

A100

GPU Class

Data Center / AI Accelerator

Release

2020

Architecture

Ampere

Target Workload

  • Large-scale deep learning training
  • LLM fine-tuning and mid-scale model training
  • High-performance computing (HPC) simulations
  • Data analytics acceleration
  • AI inference at scale

Compatible Platforms

  • DGX A100 systems
  • HGX A100 baseboards
  • NVIDIA-certified OEM servers (Dell, Supermicro, HPE)
  • Multi-GPU cloud clusters
    Interconnect: NVLink 3 (multi-GPU scaling)Software Stack: CUDA, cuDNN, TensorRT, NVIDIA AI Enterprise

Ideal Buyer Profile

Organizations that typically deploy A100 GPUs include:

  • AI startups building and training transformer-based models
  • Enterprise research teams developing custom machine learning pipelines
  • HPC centers running scientific computing workloads
  • Cloud GPU providers offering cost-effective AI compute

The A100 remains attractive for organizations seeking proven AI infrastructure with broad framework compatibility.

Availability Notes

The A100 remains widely available across both on-premise hardware systems and cloud GPU platforms. Although newer architectures have been introduced, the A100 continues to see strong demand due to its balance of performance and cost.

Many cloud providers maintain large inventories of A100 GPUs, making them one of the most accessible high-performance accelerators for AI training workloads.

Recent Developments

  • Continued use of A100 clusters in large-scale research and enterprise AI training environments. 
  • Cloud GPU marketplaces increasingly offer discounted A100 capacity as newer architectures become available. 
  • Many AI benchmarks and model training guides still use A100 as a reference performance baseline.

overview

The NVIDIA A100 is a high-performance data center GPU based on the Ampere architecture, designed for accelerating artificial intelligence training, inference, and high-performance computing workloads. Since its introduction, the A100 has become one of the most widely deployed GPUs in modern AI infrastructure.

The architecture introduced several major innovations, including third-generation Tensor Cores, support for Multi-Instance GPU (MIG) partitioning, and significantly increased memory bandwidth using HBM2e memory. These features enable efficient scaling for both large distributed training clusters and multi-tenant inference environments.

The A100 also represented a major shift toward unified AI and HPC acceleration, supporting workloads ranging from large-scale transformer training to scientific simulations. Because of its balance of performance, memory capacity, and software ecosystem maturity, the A100 became the baseline accelerator for many modern AI frameworks and cloud GPU offerings.

Key specifications

Specification A100 GPU
Architecture NVIDIA Ampere
CUDA Cores 6,912
Tensor Cores 432 (3rd Gen)
Memory 80 GB HBM2e (also available in 40 GB variant)
Memory Bandwidth ~2.0 TB/s
Interconnect NVLink 3
Form Factor SXM / PCIe
Max TGP ~400 W (SXM)
Precision Support FP64, TF32, FP32, FP16, BF16, INT8
Typical AI Compute ~312 TFLOPS (FP16 Tensor)
Process Node TSMC 7 nm
Transistor Count ~54 billion
MIG Support Supported (up to 7 partitions)
NVLink (peer) ~600 GB/s bidirectional

Performance Summary

  • AI Training: The A100 delivers strong training performance across FP16, BF16, and TF32 workloads, making it suitable for large transformer-based models.
  • Tensor Compute: Third-generation Tensor Cores significantly accelerate mixed-precision deep learning operations.
  • Memory Bandwidth: Up to ~2 TB/s of bandwidth enables efficient training of models with large batch sizes.
  • Multi-GPU Scaling: NVLink 3 interconnect enables fast communication between GPUs in multi-node clusters. 

While newer GPUs such as the H100 and B200 offer higher compute and memory bandwidth, the A100 remains widely used due to its strong performance and mature ecosystem support.

primary use case

  • LLM training and fine-tuning for mid-scale models
  • High-performance computing simulations including physics and climate modeling
  • Enterprise AI development pipelines
  • Large-scale data analytics acceleration
  • Inference clusters serving production models 

The A100’s balance of compute performance and memory bandwidth makes it suitable for both research environments and production AI infrastructure.

Alternatives & Upgrade Path

Comparable NVIDIA GPUs:

  • H100: Hopper-generation GPU with significantly higher tensor performance and memory bandwidth.
  • H200: Hopper refresh with expanded HBM3e memory capacity.
  • B200: Blackwell architecture flagship offering major improvements in AI throughput.

Competitor GPUs:

These accelerators compete with the A100 in AI training and inference workloads, though ecosystem support and software compatibility vary.

Related Chips & Providers

  • DGX A100 
  • HGX A100 
  • H100 vs A100 Comparison 
  • A100 vs H200 Comparison

SUMMARY

The NVIDIA A100 remains one of the most widely deployed AI accelerators in modern data centers. Built on the Ampere architecture, it introduced major innovations such as third-generation Tensor Cores and Multi-Instance GPU (MIG) partitioning, enabling efficient scaling for both training and inference workloads.

Although newer GPUs have surpassed it in raw performance, the A100 continues to serve as a reliable and broadly supported accelerator for AI development, research computing, and cloud-based machine learning infrastructure.

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