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// RUN — FITS
Can the Instinct MI455X run Falcon-180B?
Yes — here's how fast and up to what context, with real measured numbers.
Falcon-180B on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 69k | 34.3-41.9 t/s | ~0.1-0.1 (slow) |
| Q8 | yes | 412k | 68.6-83.8 t/s | ~0.1-0.2 (slow) |
| Q4 | yes | 563k | 122.5-149.7 t/s | ~0.3-0.3 (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 Falcon-180B?▶
Yes. At Q4 it generates ~122.5-149.7 tok/s and fits up to 563k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.3-0.3 tok/s.
How much context fits?▶
At Q4, up to about 563k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.