Leaderboard Β· All comparisons Β· LynxBenchAI 26Q3 Index
Device pages: NVIDIA B300 SXM6 AC Β· AMD Instinct MI350X
On the LynxBenchAI 26Q3 Index, the NVIDIA B300 SXM6 AC scores 1.10x the AMD Instinct MI350X overall (Training 1.32x, Inference 0.97x, Compute 1.01x). It leads on Training and Compute and trails on Inference.
| Score | Ratio | B300 SXM6 AC | AMD MI350X |
|---|---|---|---|
| Overall (GT) | 1.10x | 1277.42 | 1156.14 |
| Training | 1.32x | 1080.48 | 817.03 |
| Inference | 0.97x | 2105.93 | 2166.65 |
| Compute | 1.01x | 624.58 | 617.19 |
From the LynxBenchAI 26Q3 Index category scores, which are not raw throughput; a lead under 10% counts as level.
| Model | Precision | Ratio | B300 SXM6 AC | AMD MI350X |
|---|---|---|---|---|
| compute | ||||
| Dense MatMul | BF16 | 1.31x | 2853.41 | 2174.56 |
| Dense MatMul | FP16 | 1.38x | 2681.77 | 1944.54 |
| Dense MatMul | FP32 | 1.38x | 2121.52 | 1534.96 |
| Dense MatMul | FP64 | 0.06x | 6.97 | 122.13 |
| Sparse MatMul | FP32 | 0.95x | 186.46 | 195.34 |
| Sparse MatMul | FP64 | 0.47x | 131.34 | 280.12 |
| inference | ||||
| DistilBERT | FP16 | 0.85x | 4366.17 | 5109.02 |
| DistilBERT | FP8 | 0.73x | 1863.41 | 2541.77 |
| DistilBERT | INT8 | 0.34x | 733.72 | 2156.42 |
| DistilGPT2 | FP16 | 0.35x | 1900.43 | 5445.98 |
| DistilGPT2 | FP8 | 0.32x | 906.52 | 2833.38 |
| DistilGPT2 | INT8 | 0.23x | 563.79 | 2428.68 |
| Flan-T5 Small | FP16 | 1.26x | 6991.61 | 5565.58 |
| Flan-T5 Small | FP8 | 0.84x | 2362.98 | 2820.77 |
| Flan-T5 Small | INT8 | 0.35x | 826.52 | 2341.95 |
| GraphGPS (Peptides) | FP16 | 1.62x | 2274.51 | 1405.97 |
| GraphGPS (Peptides) | FP8 | 1.38x | 1157.93 | 837.37 |
| GraphGPS (Peptides) | INT8 | 1.01x | 793.56 | 789.04 |
| MobileNetV3 | FP16 | 3.36x | 4720.15 | 1404.76 |
| MobileNetV3 | INT8 | 2.51x | 1605.82 | 638.72 |
| training | ||||
| DistilBERT | BF16 | 1.14x | 2127.79 | 1859.31 |
| DistilBERT | FP32 | 1.16x | 2448.42 | 2113.86 |
| DistilGPT2 | BF16 | 0.50x | 703.68 | 1394.94 |
| DistilGPT2 | FP32 | 1.04x | 1928.26 | 1860.31 |
| Flan-T5 Small | BF16 | 0.92x | 1099.16 | 1200.09 |
| Flan-T5 Small | FP32 | 1.12x | 2203.37 | 1967.35 |
| GraphGPS (Peptides) | BF16 | 1.53x | 575.06 | 376.34 |
| GraphGPS (Peptides) | FP32 | 1.26x | 612.45 | 486.15 |
| MobileNetV3 | BF16 | 2.42x | 253.32 | 104.50 |
| MobileNetV3 | FP32 | 8.02x | 642.84 | 80.12 |
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
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.
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