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// RUN — FITS
Can the Intel Arc B580 12GB run Stable Diffusion XL (SDXL)?
Yes — here's how fast and up to what context, with real measured numbers.
Stable Diffusion XL (SDXL) on the Intel Arc B580 12GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 42k | 38.9-48.3 t/s | ~3.4-4.2 (slow) |
| Q8 | yes | 94k | 77.8-96.6 t/s | ~6.8-8.5 (slow) |
| Q4 | yes | 117k | 138.9-172.4 t/s | ~12.2-15.1 (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 Intel Arc B580 12GB run Stable Diffusion XL (SDXL)?▶
Yes. At Q4 it generates ~138.9-172.4 tok/s and fits up to 117k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~12.2-15.1 tok/s.
How much context fits?▶
At Q4, up to about 117k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.