Best home rig for Qwen3 235B-A22B

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Real, measured generation speeds for Qwen3 235B-A22B on home hardware, fastest first. Different quants/engines aren't directly comparable.

Build	Quant	Engine	tok/s	Cost
4x RTX 3090 + EPYC 7443, 256 GB DDR4 8-channel	IQ4_XS	llama.cpp	18		source ⚠ unchecked
4x RTX 3090 + 32-core Threadripper, 192 GB DDR4	UD-Q3_K_XL	llama.cpp	12-14		source ⚠ unchecked

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FAQ

What is the fastest measured hardware for Qwen3 235B-A22B?

4x RTX 3090: 18 tok/s generation (llama.cpp, IQ4_XS), from https://www.reddit.com/r/LocalLLaMA/comments/1khmaah/5_commands_to_run_qwen3235ba22b_q3_inference_on/.

Which GPUs have measured results for Qwen3 235B-A22B?

4x RTX 3090.

Can it run on… 4x RTX 3090