🔌
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 Instinct MI455X run Nemotron-H 56B?
Yes — here's how fast and up to what context, with real measured numbers.
Nemotron-H 56B on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 867k | 110.3-134.8 t/s | ~0.2-0.3 (slow) |
| Q8 | yes | 1037k | 220.5-269.5 t/s | ~0.5-0.6 (slow) |
| Q4 | yes | 1113k | 393.8-481.3 t/s | ~0.8-1 (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 Instinct MI455X run Nemotron-H 56B?▶
Yes. At Q4 it generates ~393.8-481.3 tok/s and fits up to 1113k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.8-1 tok/s.
How much context fits?▶
At Q4, up to about 1113k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.