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[Guide / Weights] Qwen 3.8 27B on Intel Arc: Why IQ quants crawl at 8 tok/s, why Q4_K outpaces sub-4bpw on Battlemage, and clean RCO GGUFs (16GB & 24GB)

If you’ve tried running Qwen 3.8 27B on Intel Arc hardware (A770 16GB, Arc Pro B50 16GB, or Arc Pro B60 24GB) using `llama.cpp`’s SYCL backend, you’ve probably run into the classic Intel Arc performance cliff: generation speeds crawling at 8 to 12 tok/s on a card with plenty of compute and 456+ GB/…

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  1. 2026-09-19 15:58 · r/LocalLLM
    [Guide / Weights] Qwen 3.8 27B on Intel Arc: Why IQ quants crawl at 8 tok/s, why Q4_K outpaces sub-4bpw on Battlemage, and clean RCO GGUFs (16GB & 24GB)

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