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Still the Most Deployed AI Training GPU in Production Data Centers
The H100 gets the headlines. The A100 gets the work done. Despite the H100 launch, the NVIDIA A100 80GB remains the most widely deployed AI training GPU in enterprise data centers — and for good reason. It supports FP64 Tensor Cores for HPC, MEU (GPU multi-instância) for secure multi-tenant inference, and NVLink for multi-GPU training at scale. At roughly 55-65% of the H100 price, it is the pragmatic choice for training 13B-70B parameter models and running mixed HPC-plus-AI workloads.
Especificações técnicas
| Parâmetro | Especificação |
|---|---|
| Arquitetura GPU | NVIDIA Ampere (GA100) |
| CUDA Cores | 6,912 |
| Núcleos tensoriais | 432 (3Terceira Geração) |
| Memória | 80 GB HBM2e |
| Largura de banda de memória | 2,039 GB/s (HBM2e, 5 stacks) |
| Barramento de memória | 5,120-pedaço |
| Interface | PCIe 4.0 x16 (or SXM4 for NVLink) |
| NVLink | 600 GB/s (PCIe variant: via NVLink Bridge for 2 GPU; SXM4 variant: até 8 GPU) |
| FP64 Performance (Tensor Core) | 19.5 TFLOPS |
| Desempenho FP32 | 19.5 TFLOPS |
| Núcleo Tensor TF32 (com escassez) | 312 TFLOPS (624 TFLOPS with sparsity) |
| Núcleo Tensor FP16 (com escassez) | 312 TFLOPS (624 TFLOPS with sparsity) |
| Núcleo Tensor INT8 (com escassez) | 624 TOPOS (1,248 TOPS with sparsity) |
| MEU (GPU multi-instância) | Até 7 isolated GPU instances (10/20/40/80 GB each) |
| TDP (máx.) | 300C (PCIe) / 400C (SXM4) |
| Fator de forma | PCIe: dual-slot FHFL, resfriamento passivo | SXM4: mezzanine module |
| Conector de alimentação | 1x PCIe CEM 8-pin CPU power (PCIe variant) |
| Memória ECC | Full HBM2e ECC (not optional — always on for data integrity) |
| Dimensões Físicas | PCIe: 267 x 112 milímetros (slot duplo), 1.24 kg |
| Temperatura operacional | 0°C a 45 °C |
| Garantia | 3-ano (fabricante) |
A100 vs H100 vs L40S — When Each One Wins
| Decision Factor | A100 80GB | H100 80GB | L40S 48GB |
|---|---|---|---|
| Best for full training (70Modelos B+) | Good with NVLink | Melhor. 8º PQ + Transformer Engine + NVSwitch | Não recomendado |
| Best for inference (7B-13B) | Bom. 80GB headroom | Overkill for most inference | Best price-performance |
| Best for HPC (FP64) | Melhor. FP64 Tensor Cores = 19.5 TFLOPS | Limited FP64. A100 is the HPC GPU | Sem núcleos tensores FP64 |
| Best for MIG / multi-tenant | Excelente. 7 MIG instances | Excelente. 7 MIG instances, higher throughput | Não compatível |
| NVLink multi-GPU | Até 8 GPU (SXM4) | Até 8 GPU (SXM5 + NVSwitch) | Não compatível |
| Memória | 80 GB HBM2e | 80 GB HBM3 | 48 GB GDDR6 ECC |
| Largura de banda de memória | 2.0 TB/s | 3.35 TB/s | 864 GB/s |
| Preço (em relação a H100) | ~55-65% | 100% (linha de base) | ~25-30% |
Where the A100 Still Outperforms the H100
The A100 has one capability that the H100 deliberately limited: full-speed FP64. The H100 delivers ~34 TFLOPS FP64, but only on its Tensor Cores and at reduced rates compared to A100. For workloads that depend on double-precision math — computational fluid dynamics, molecular dynamics, climate modeling, financial risk simulation — the A100 is actually faster per-dollar than the H100. If your workload mix includes both AI training and traditional HPC, the A100 may be the better fit even at the same price point.
MEU: The Feature That Makes A100 a Cloud GPU
Multi-Instance GPU partitions a single A100 into up to 7 fully isolated GPU instances, each with its own dedicated memory, cache, and compute resources. A cloud provider can sell one physical A100 to seven different customers with guaranteed performance isolation. An enterprise can run seven different inference models on one GPU without crosstalk. MIG is supported on A100 but was deprecated on L40S — if MIG matters to your deployment, A100 (or H100) is the only path.
Plataformas de servidor compatíveis
PCIe variant compatible with Dell PowerEdge R760xa, R770, R7715, XE9680, xFusion G5500 V7, 2288H V7, and any server with 300W GPU power delivery and adequate chassis airflow. SXM4 variant requires SXM4-compatible baseboard — contact our engineering team for platform compatibility verification.
Fonte através de Xincuan
We supply A100 GPUs pre-installed in Dell and xFusion servers, or as upgrade kits for existing platforms. Preços direto da fábrica, 3-ano de garantia, envio global, and free GPU architecture consultation.
