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// RUN — FITS
Can the Intel Arc B580 12GB run S4?
Yes — here's how fast and up to what context, with real measured numbers.
S4 on the Intel Arc B580 12GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 138k | 531.1-659.3 t/s | ~46.6-57.8 (slow) |
| Q8 | yes | 142k | 1062.2-1318.6 t/s | ~93.2-115.7 (slow) |
| Q4 | yes | 143k | 1896.7-2354.6 t/s | ~166.4-206.5 (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 Intel Arc B580 12GB run S4?▶
Yes. At Q4 it generates ~1896.7-2354.6 tok/s and fits up to 143k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~166.4-206.5 tok/s.
How much context fits?▶
At Q4, up to about 143k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.