GPU comparison

A100 SXM4 80GB vs L4

Specifications and current cloud pricing, side by side.

AmperevsAda LovelaceUpdated 35 days ago

This variant comparison is part of the A100 vs L4 family comparison.

The A100 SXM4 80GB wins for the most common large scale training use case because its 80 GB HBM2e memory and 2039 GB/s bandwidth exceed the L4 specifications by substantial margins.

A100 SXM4 80GB from $0.67/GPU/hrL4 from $0.33/GPU/hr

Right now, from live stock

  • Cheapest right now: L4 at $0.33/hr on Vast.ai

    Deploy
  • Most providers in stock: A100 SXM4 80GB (12)

    See all offers
  • Best $ per TFLOPS FP16 dense right now: A100 SXM4 80GB ($0.0021 per TFLOPS-hour at 312 TFLOPS)

    Deploy

Specifications Compared

SpecA100 SXM4 80GBL4
TDP400W72W
VRAM80 GB24 GB
CUDA Cores6,9127,424
FP8 (dense)Not published242 TFLOPS
Memory TypeHBM2eGDDR6
ArchitectureAmpereAda Lovelace
FP16 (dense)312 TFLOPS121 TFLOPS
Form FactorsSXM4PCIe
INT8 (dense)624 TOPS242 TOPS
InterconnectNVLink, PCIe 4.0, InfiniBandPCIe 4.0
Tensor Cores432232
FP32 Performance19.5 TFLOPS30.3 TFLOPS
FP64 Performance9.7 TFLOPS0.5 TFLOPS
Memory Bandwidth2,039 GB/s300 GB/s
FP8 (with sparsity)Not published485 TFLOPS
FP16 (with sparsity)624 TFLOPS242 TFLOPS
INT8 (with sparsity)1,248 TOPS485 TOPS

Performance Analysis

The A100 SXM4 80GB achieves 312 TFLOPS in dense FP16 compared to 121 TFLOPS in dense FP16 for the L4 which means the A100 SXM4 80GB processes larger models or higher precision operations in training scenarios. FP32 performance stands at 19.5 TFLOPS for the A100 SXM4 80GB against 30.3 TFLOPS for the L4 so inference tasks that rely on single precision may favor the L4 in some cases. Memory bandwidth at 2039 GB/s for the A100 SXM4 80GB family allows larger batch sizes than the 300 GB/s bandwidth of the L4 family during both training and inference. Sparse FP16 reaches 624 TFLOPS on the A100 SXM4 80GB family versus 242 TFLOPS on the L4 family so sparsity benefits scale proportionally without mixing dense and sparse figures.

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 SXM4 80GB

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Vast.aiSlovenia, SI1$0.67—Deploy
LeaderGPUThe Netherlands8$0.68$5.42Deploy
ThunderComputeUSA2$1.09$2.18Deploy
Massed Computeus-central-31$1.35—Deploy
HyperstackCANADA-11$1.35—Deploy

12 providers in stock, 40 offers (cheapest per provider shown). All A100 SXM4 80GB offers, price history and alerts

L4

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Vast.aiIreland, IE1$0.33—Deploy
Orilille-41$0.93—Deploy

2 providers in stock, 2 offers. All L4 offers, price history and alerts

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When to Choose the A100 SXM4 80GB

The A100 SXM4 80GB suits workloads that require 80 GB HBM2e capacity and NVLink connectivity for multi GPU scaling. Scientific computing jobs benefit from the 2039 GB/s memory bandwidth and 400W TDP configuration when handling large datasets.

When to Choose the L4

The L4 fits deployments where 72W TDP and PCIe form factor reduce infrastructure demands. Inference pipelines with 24 GB GDDR6 memory handle moderate batch sizes efficiently under the Ada Lovelace architecture.

Use Cases

LLM Training
A100 SXM4 80GB

The A100 SXM4 80GB supplies 80 GB HBM2e memory that accommodates larger models than the 24 GB GDDR6 on the L4.

LLM Inference
L4

The L4 operates at 72W TDP which suits sustained inference with lower power needs than the 400W TDP of the A100 SXM4 80GB.

Fine-tuning
A100 SXM4 80GB

The A100 SXM4 80GB delivers 312 TFLOPS dense FP16 that supports fine tuning operations beyond the 121 TFLOPS dense FP16 of the L4.

Stable Diffusion
Either

Both GPUs handle image generation tasks with the A100 SXM4 80GB offering higher bandwidth at 2039 GB/s and the L4 providing efficiency at 72W TDP.

Scientific Computing
A100 SXM4 80GB

The A100 SXM4 80GB includes NVLink interconnect that enables faster data movement than the PCIe 4.0 interface on the L4.

Frequently Asked Questions

What memory configurations distinguish the A100 SXM4 80GB from the L4?▾

The A100 SXM4 80GB variant uses 80 GB HBM2e memory while the L4 variant uses 24 GB GDDR6 memory. These capacities remain fixed for the specific models under comparison.

Which GPU provides higher memory bandwidth?▾

The A100 SXM4 80GB family shares 2039 GB/s memory bandwidth while the L4 family shares 300 GB/s memory bandwidth. This difference influences batch size capabilities in training workloads.

What power requirements apply to each GPU variant?▾

The A100 SXM4 80GB operates at 400W TDP and the L4 operates at 72W TDP. These figures apply across all variants in their respective families.

Does the A100 SXM4 80GB support NVLink?▾

The A100 SXM4 80GB variant includes NVLink interconnect alongside PCIe 4.0 and InfiniBand. The L4 variant supports only PCIe 4.0 interconnect.

Which is cheaper to rent, the A100 SXM4 80GB or the L4?▾

Cloud rental prices for both the A100 SXM4 80GB and L4 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 SXM4 80GB have compared to the L4?▾

The A100 SXM4 80GB has 80 GB of HBM2e memory. The L4 has 24 GB of GDDR6 memory.

Can I find A100 SXM4 80GB and L4 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 SXM4 80GB and the L4?▾

The A100 SXM4 80GB uses the Ampere architecture (2020) while the L4 uses Ada Lovelace (2023). The A100 SXM4 80GB delivers 2.6x the dense FP16 throughput (312 vs 121 TFLOPS, both without sparsity) and 6.8x the memory bandwidth of the L4.

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 SXM4 80GB and the L4. 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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