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// RUN — FITS
Can the Instinct MI455X run GLM-4.5-Air?
Yes — here's how fast and up to what context, with real measured numbers.
GLM-4.5-Air on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 561k | 58.2-71.2 t/s | ~0.1-0.1 (slow) |
| Q8 | yes | 885k | 116.5-142.4 t/s | ~0.2-0.3 (slow) |
| Q4 | yes | 1027k | 208-254.2 t/s | ~0.4-0.5 (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 GLM-4.5-Air?▶
Yes. At Q4 it generates ~208-254.2 tok/s and fits up to 1027k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.4-0.5 tok/s.
How much context fits?▶
At Q4, up to about 1027k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.