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AMD Instinct MI300X vs NVIDIA H100 80GB HBM3 for AI

Device pages: AMD Instinct MI300X Β· NVIDIA H100 80GB HBM3

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.

Scores on the LynxBenchAI 26Q3 Index

Ratio = the AMD MI300X's score divided by the H100 80GB HBM3's
ScoreRatioAMD MI300XH100 80GB HBM3
Overall (GT)1.05x986.72939.45
Training1.03x727.23709.35
Inference0.78x1304.041678.11
Compute2.10x1023.28487.13

Per Model and Precision

Sustained throughput per model and precision; ratio = AMD MI300X / H100 80GB HBM3
ModelPrecisionRatioAMD MI300XH100 80GB HBM3
compute
Dense MatMulBF160.93x1227.871315.06
Dense MatMulFP160.98x1238.821264.27
Dense MatMulFP321.07x1095.581026.69
Dense MatMulFP641.04x432.02414.37
Sparse MatMulFP328.21x1322.97161.05
Sparse MatMulFP642.76x774.09280.45
inference
DistilBERTFP161.08x2816.122611.72
DistilBERTFP81.12x1524.791362.71
DistilBERTINT80.87x946.391090.29
DistilGPT2FP160.87x3318.553797.65
DistilGPT2FP80.88x1689.361920.23
DistilGPT2INT80.73x1084.291489.31
Flan-T5 SmallFP160.88x3458.973919.63
Flan-T5 SmallFP81.04x1719.401658.94
Flan-T5 SmallINT80.77x1070.691389.31
GraphGPS (Peptides)FP161.07x1139.441060.04
GraphGPS (Peptides)FP81.06x582.67548.07
GraphGPS (Peptides)INT81.03x536.07520.52
MobileNetV3FP160.26x733.832832.98
MobileNetV3INT80.55x515.38931.43
training
DistilBERTBF161.18x1524.761291.98
DistilBERTFP321.07x1583.231480.99
DistilGPT2BF161.40x911.36651.85
DistilGPT2FP321.36x1571.281159.01
Flan-T5 SmallBF161.39x862.82622.63
Flan-T5 SmallFP321.35x1482.851095.97
GraphGPS (Peptides)BF160.81x313.78386.94
GraphGPS (Peptides)FP321.14x426.90374.00
MobileNetV3BF160.45x116.95257.12
MobileNetV3FP320.49x275.35564.13

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 H200 faster than the AMD Instinct MI300X for AI?
On the LynxBenchAI 26Q3 Index, the NVIDIA H200 scores 1.06x the AMD Instinct MI300X overall (Training 1.12x, Inference 1.47x, Compute 0.47x). It leads on Training and Inference and trails on Compute.
Where is the difference between the NVIDIA H200 and the AMD Instinct MI300X largest?
On the LynxBenchAI 26Q3 Index, the ratio is highest on MobileNetV3 at FP16 (Inference), where the NVIDIA H200 scores 4.33x the AMD Instinct MI300X, and lowest on Sparse MatMul at FP32 (Compute), at 0.12x.
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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