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// RUN — FITS
Can the NVIDIA H100 SXM5 80GB run CausalLM 14B?
Yes — here's how fast and up to what context, with real measured numbers.
CausalLM 14B on the NVIDIA H100 SXM5 80GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 261k | 83.2-99.1 t/s | ~1-1.2 (slow) |
| Q8 | yes | 350k | 166.4-198.3 t/s | ~2-2.4 (slow) |
| Q4 | yes | 390k | 297.1-354 t/s | ~3.5-4.2 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.
FAQ
Can the NVIDIA H100 SXM5 80GB run CausalLM 14B?▶
Yes. At Q4 it generates ~297.1-354 tok/s and fits up to 390k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~3.5-4.2 tok/s.
How much context fits?▶
At Q4, up to about 390k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.