GPU comparison

A100 PCIe 80GB vs L40S

Specifications and current cloud pricing, side by side.

AmperevsAda LovelaceUpdated 32 days ago

This variant comparison is part of the L40S vs A100 family comparison.

The A100 PCIe 80GB variant wins for the most common large model training use case because its 80 GB HBM2e memory and 2039 GB/s bandwidth exceed the 48 GB and 864 GB/s limits of the L40S variant.

A100 PCIe 80GB from $0.68/GPU/hrL40S from $0.97/GPU/hr

Right now, from live stock

  • Cheapest right now: A100 PCIe 80GB at $0.68/hr on LeaderGPU

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  • Most providers in stock: A100 PCIe 80GB (10)

    See all offers
  • Best $ per TFLOPS FP16 dense right now: A100 PCIe 80GB ($0.0022 per TFLOPS-hour at 312 TFLOPS)

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Specifications Compared

SpecA100 PCIe 80GBL40S
TDP400W350W
VRAM80 GB48 GB
CUDA Cores6,91218,176
FP8 (dense)Not published733 TFLOPS
Memory TypeHBM2eGDDR6
ArchitectureAmpereAda Lovelace
FP16 (dense)312 TFLOPS362.05 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)624 TOPS733 TOPS
InterconnectPCIe 4.0, InfiniBand; NVLink only via a bridge between card pairsPCIe 4.0
Tensor Cores432568
FP32 Performance19.5 TFLOPS91.6 TFLOPS
FP64 Performance9.7 TFLOPS1.4 TFLOPS
Memory Bandwidth2,039 GB/s864 GB/s
FP8 (with sparsity)Not published1,466 TFLOPS
FP16 (with sparsity)624 TFLOPS733 TFLOPS
INT8 (with sparsity)1,248 TOPS1,466 TOPS

Performance Analysis

Dense FP16 throughput measures 312 TFLOPS on the A100 family against 362.05 TFLOPS on the L40S family while sparse FP16 reaches 624 TFLOPS versus 733 TFLOPS respectively. The higher dense FP16 and FP32 figures of 91.6 TFLOPS on the L40S family compared with 19.5 TFLOPS on the A100 family translate to faster matrix operations during inference workloads that fit within 48 GB. Memory bandwidth of 2039 GB/s on the A100 family supports larger batch sizes in memory intensive training scenarios than the 864 GB/s bandwidth on the L40S family even though both families share their tensor metrics across variants.

Current On-Demand Offers

Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.

A100 PCIe 80GB

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
LeaderGPUThe Netherlands8$0.68$5.42Deploy
Vast.aiCzechia, CZ1$0.73—Deploy
ThunderComputeUSA1$1.09—Deploy
HyperstackCANADA-11$1.35—Deploy
Massed Computeus-east-11$1.38—Deploy

10 providers in stock, 30 offers (cheapest per provider shown). All A100 PCIe 80GB offers, price history and alerts

L40S

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Massed Computeus-central-34$0.97$3.88Deploy
QuantaCloudus-midwest-14$1.09$4.36Deploy
RunPodglobal1$1.09—Deploy
LyceumEurope1$1.99—Deploy

4 providers in stock, 18 offers (cheapest per provider shown). All L40S offers, price history and alerts

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When to Choose the A100 PCIe 80GB

The A100 PCIe 80GB variant suits workloads that require 80 GB HBM2e capacity for models exceeding 48 GB. Its 2039 GB/s memory bandwidth and InfiniBand interconnect enable distributed training across multiple cards where the L40S variant cannot match the memory scale.

When to Choose the L40S

Its 350W TDP and Ada Lovelace architecture deliver higher per watt tensor performance than the A100 PCIe 80GB variant for single node deployments.

Use Cases

LLM Training
A100 PCIe 80GB

The A100 PCIe 80GB variant provides 80 GB HBM2e that accommodates larger models than the 48 GB GDDR6 on the L40S variant.

LLM Inference
L40S

The L40S variant supplies 362.05 TFLOPS dense FP16 that exceeds the 312 TFLOPS dense FP16 of the A100 family for smaller batches.

Fine-tuning
L40S

The L40S variant offers 91.6 TFLOPS FP32 and lower 350W TDP that improve efficiency over the A100 PCIe 80GB variant for adapter based updates.

Stable Diffusion
A100 PCIe 80GB

The A100 PCIe 80GB variant supports 80 GB capacity that allows higher resolution batches than the 48 GB limit of the L40S variant.

Scientific Computing
A100 PCIe 80GB

The A100 PCIe 80GB variant includes InfiniBand interconnect and 2039 GB/s bandwidth that aid multi node scientific simulations.

Frequently Asked Questions

What is the memory difference between A100 PCIe 80GB and L40S?▾

The A100 PCIe 80GB variant holds 80 GB HBM2e while the L40S variant holds 48 GB GDDR6. Both families share their listed memory bandwidth figures across all variants.

How does FP16 performance compare between these GPUs?▾

Dense FP16 reaches 312 TFLOPS on the A100 family and 362.05 TFLOPS on the L40S family. Sparse FP16 reaches 624 TFLOPS on the A100 family and 733 TFLOPS on the L40S family.

Which GPU has higher FP32 throughput?▾

The L40S family lists 91.6 TFLOPS FP32 while the A100 family lists 19.5 TFLOPS FP32. These figures apply to every variant within each family.

Can the A100 PCIe 80GB use NVLink?▾

The A100 PCIe 80GB variant supports NVLink only through a bridge between card pairs along with InfiniBand. The L40S variant supports only PCIe 4.0 interconnect.

What are the TDP values for each GPU?▾

The A100 family TDP is 400W and the L40S family TDP is 350W. These power figures remain consistent across all variants of each family.

Which is cheaper to rent, the A100 PCIe 80GB or the L40S?▾

Cloud rental prices for both the A100 PCIe 80GB and L40S 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 PCIe 80GB have compared to the L40S?▾

The A100 PCIe 80GB has 80 GB of HBM2e memory. The L40S has 48 GB of GDDR6 memory.

Can I find A100 PCIe 80GB and L40S 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 PCIe 80GB and the L40S?▾

The A100 PCIe 80GB uses the Ampere architecture (2020) while the L40S uses Ada Lovelace (2023). The L40S delivers 1.2x the dense FP16 throughput (362.05 vs 312 TFLOPS, both without sparsity) while the A100 PCIe 80GB has 2.4x the memory bandwidth of the L40S.

Rent these GPUs

Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.

Related comparisons

How this page is made

  • Specifications come from the NVIDIA, AMD and Intel datasheets for the A100 PCIe 80GB and the L40S. Dense and sparse throughput are listed separately.
  • Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
  • The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
  • Read how we collect the data, or report an error on this page.

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