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Can the Instinct MI455X run Pangu-Weather?
Yes — here's how fast and up to what context, with real measured numbers.
Pangu-Weather on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 6034k | 24117.2-29476.6 t/s | ~49.2-60.2 (slow) |
| Q8 | yes | 6038k | 48234.4-58953.1 t/s | ~98.4-120.3 (slow) |
| Q4 | yes | 6039k | 86132.8-105273.4 t/s | ~175.8-214.8 (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 Pangu-Weather?▶
Yes. At Q4 it generates ~86132.8-105273.4 tok/s and fits up to 6039k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~175.8-214.8 tok/s.
How much context fits?▶
At Q4, up to about 6039k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.