🔌
New: connect Claude & other AIs to GenAIList over MCP — research the catalog and contribute to the shared knowledge base. Learn how →
// RUN — FITS
Can the NVIDIA H200 run GPT-NeoX-20B?
Yes — here's how fast and up to what context, with real measured numbers.
GPT-NeoX-20B on the NVIDIA H200
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 337k | 87.6-104.4 t/s | ~0.7-0.9 (slow) |
| Q8 | yes | 413k | 175.2-208.8 t/s | ~1.5-1.7 (slow) |
| Q4 | yes | 446k | 312.9-372.9 t/s | ~2.6-3.1 (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 H200 run GPT-NeoX-20B?▶
Yes. At Q4 it generates ~312.9-372.9 tok/s and fits up to 446k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2.6-3.1 tok/s.
How much context fits?▶
At Q4, up to about 446k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.