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NVIDIA H100 80GB HBM3 vs NVIDIA L40S for AI

Device pages: NVIDIA H100 80GB HBM3 Β· NVIDIA L40S

On the LynxBenchAI 26Q3 Index, the NVIDIA H100 80GB HBM3 scores 2.37x the NVIDIA L40S overall (Training 2.24x, Inference 3.18x, Compute 1.41x).

Scores on the LynxBenchAI 26Q3 Index

Ratio = the H100 80GB HBM3's score divided by the L40S's
ScoreRatioH100 80GB HBM3L40S
Overall (GT)2.37x939.45395.82
Training2.24x709.35316.04
Inference3.18x1678.11528.12
Compute1.41x487.13344.33

Per Model and Precision

Sustained throughput per model and precision; ratio = H100 80GB HBM3 / L40S
ModelPrecisionRatioH100 80GB HBM3L40S
compute
Dense MatMulBF165.41x1315.06243.02
Dense MatMulFP165.19x1264.27243.74
Dense MatMulFP323.39x1026.69303.04
Dense MatMulFP6447.72x414.378.68
Sparse MatMulFP320.28x161.05575.74
Sparse MatMulFP640.49x280.45577.96
inference
DistilBERTFP162.91x2611.72898.53
DistilBERTFP82.65x1362.71514.72
DistilBERTINT82.49x1090.29438.15
DistilGPT2FP165.05x3797.65752.18
DistilGPT2FP84.20x1920.23457.31
DistilGPT2INT83.54x1489.31420.32
Flan-T5 SmallFP163.88x3919.631009.63
Flan-T5 SmallFP82.93x1658.94566.59
Flan-T5 SmallINT82.76x1389.31503.01
GraphGPS (Peptides)FP163.95x1060.04268.17
GraphGPS (Peptides)FP83.98x548.07137.60
GraphGPS (Peptides)INT83.77x520.52138.11
MobileNetV3FP162.06x2832.981375.69
MobileNetV3INT82.31x931.43403.39
training
DistilBERTBF163.19x1291.98405.03
DistilBERTFP323.01x1480.99492.41
DistilGPT2BF162.92x651.85223.21
DistilGPT2FP322.96x1159.01391.29
Flan-T5 SmallBF162.36x622.63263.33
Flan-T5 SmallFP322.33x1095.97470.80
GraphGPS (Peptides)BF162.10x386.94184.43
GraphGPS (Peptides)FP321.80x374.00207.50
MobileNetV3BF161.04x257.12248.23
MobileNetV3FP321.50x564.13376.00

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 AMD Instinct MI300X faster than the NVIDIA H100 80GB HBM3 for AI?
On the LynxBenchAI 26Q3 Index, the AMD Instinct MI300X scores 1.05x the NVIDIA H100 80GB HBM3 overall (Training 1.03x, Inference 0.78x, Compute 2.10x). It leads on Training and Compute and trails on Inference.
Where is the difference between the AMD Instinct MI300X and the NVIDIA H100 80GB HBM3 largest?
On the LynxBenchAI 26Q3 Index, the ratio is highest on Sparse MatMul at FP32 (Compute), where the AMD Instinct MI300X scores 8.21x the NVIDIA H100 80GB HBM3, and lowest on MobileNetV3 at FP16 (Inference), at 0.26x.
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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