Decoder. plain-English AI glossary

H100

● Core

NVIDIA's flagship AI accelerator GPU; the de facto standard for training and serving large language models.

Think of it like

The gold standard; if you have the money, you buy H100s.

Example

Training a 70B-parameter model typically uses 16–128 H100 GPUs depending on strategy.

How it actually works

H100 has 80GB HBM3 memory, 141 TFLOPS FP8, and NVLink for scaling. Prices are $40k per GPU, but cloud pricing is lower.

For product teams

Supply-constrained; huge profit margins for NVIDIA.

For engineers

H100 is the baseline assumption for LLM infrastructure; A-100s are budget option, H100s are premium.

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