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Qwen 3.5 122B Heretic ROCmFP4 iMatrix

Reddit r/LocalLLaMA ↗ · 2026-07-15 Cached

A compact, importance-calibrated ROCmFP4 quantization of Qwen 3.5 122B model for high-memory AMD systems, achieving improved quality (14% lower KLD) and performance (28.45 tok/s). Requires ROCmFPX runtime; not compatible with stock llama.cpp.

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