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NVIDIA A100 80GB PCIe vs NVIDIA L40S for AI

Device pages: NVIDIA A100 80GB PCIe Β· NVIDIA L40S

On the LynxBenchAI 26Q3 Index, the NVIDIA A100 80GB PCIe scores 1.02x the NVIDIA L40S overall (Training 1.23x, Inference 1.11x, Compute 0.58x). It leads on Training and Inference and trails on Compute.

Scores on the LynxBenchAI 26Q3 Index

Ratio = the A100 80GB PCIe's score divided by the L40S's
ScoreRatioA100 80GB PCIeL40S
Overall (GT)1.02x403.38395.82
Training1.23x387.30316.04
Inference1.11x584.07528.12
Compute0.58x201.12344.33
  • Runs on the L40S only: FP8 inference.

Per Model and Precision

Sustained throughput per model and precision; ratio = A100 80GB PCIe / L40S
ModelPrecisionRatioA100 80GB PCIeL40S
compute
Dense MatMulBF161.72x418.74243.02
Dense MatMulFP161.58x384.97243.74
Dense MatMulFP321.05x317.87303.04
Dense MatMulFP6413.57x117.848.68
Sparse MatMulFP320.16x92.16575.74
Sparse MatMulFP640.28x163.89577.96
inference
DistilBERTFP161.23x1102.80898.53
DistilBERTFP8n/anot run514.72
DistilBERTINT81.21x531.81438.15
DistilGPT2FP161.85x1390.64752.18
DistilGPT2FP8n/anot run457.31
DistilGPT2INT81.50x630.82420.32
Flan-T5 SmallFP161.40x1411.061009.63
Flan-T5 SmallFP8n/anot run566.59
Flan-T5 SmallINT81.34x672.11503.01
GraphGPS (Peptides)FP161.96x525.67268.17
GraphGPS (Peptides)FP8n/anot run137.60
GraphGPS (Peptides)INT81.89x260.48138.11
MobileNetV3FP161.07x1472.071375.69
MobileNetV3INT81.14x459.72403.39
training
DistilBERTBF161.58x639.53405.03
DistilBERTFP321.49x736.08492.41
DistilGPT2BF161.54x343.98223.21
DistilGPT2FP321.56x609.72391.29
Flan-T5 SmallBF161.28x336.21263.33
Flan-T5 SmallFP321.23x579.06470.80
GraphGPS (Peptides)BF161.16x214.16184.43
GraphGPS (Peptides)FP321.02x212.64207.50
MobileNetV3BF160.70x173.31248.23
MobileNetV3FP320.92x346.28376.00

Related Comparisons

Each figure is the first device's overall score divided by the second's.

Measure your own machine: pip install lynxbench-ai Β· Install guide β†’

How to Read These Results

A LynxBenchAI score is sustained throughput on a fixed catalogue of PyTorch models, measured after a warm-up at a batch size raised until throughput stops improving, so it is what the machine holds under load, not its best instant. Training, Inference and Compute are three separate scores; GT combines them (Training and Inference weigh 0.4 each, Compute 0.2).

Every run uses the stock, publicly released PyTorch stack, so a result is broadly indicative of the out-of-the-box PyTorch experience on that hardware, and so of custom PyTorch models too. It does not run your own model, and it is not a vendor-tuned peak like an MLPerf submission.

Scores compare only within one Index: the 26Q3 Index fixes the models, precisions, correctness thresholds and scoring, and a later Index may change them. Each test is one timed window, the scores have no 0-100 scale, and a precision a device cannot run scores zero rather than being skipped.

LynxBenchAI is built by TechnoLynx, which the European Commission engaged as an independent expert advisor on AI performance and benchmarking for AI Gigafactories under the EuroHPC Joint Undertaking (case study).

Questions

Is the NVIDIA L40S faster than the NVIDIA L40 for AI?
On the LynxBenchAI 26Q3 Index, the NVIDIA L40S scores 1.02x the NVIDIA L40 overall (Training 1.02x, Inference 1.02x, Compute 1.02x).
Where is the difference between the NVIDIA L40S and the NVIDIA L40 largest?
On the LynxBenchAI 26Q3 Index, the ratio is highest on Dense MatMul at FP32 (Compute), where the NVIDIA L40S scores 1.37x the NVIDIA L40, and lowest on Flan-T5 Small at FP8 (Inference), at 0.84x.
What does this result tell me about my own PyTorch model?
Every run uses the stock, publicly released PyTorch stack, so a result is broadly indicative of the out-of-the-box PyTorch experience on that hardware, and so of custom PyTorch models too. It does not run your own model, and it is not a vendor-tuned peak like an MLPerf submission.

The Personal Edition submits your benchmark results to TechnoLynx's servers as part of participating in the public leaderboard. If that isn't acceptable for your use case, contact TechnoLynx about Press, Pro, or Enterprise licenses.

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