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Can I run Qwen3.8-27B-Defiance-Uncensored-MTP-GGUF on an RTX 3090?

Yes

Its IQ4_XS file (15.7 GB) fits in the 21.6 GB an RTX 3090 can use, with room for ≈ 86K tokens of context.

Full analysis of Qwen3.8-27B-Defiance-Uncensored-MTP-GGUF Everything that runs on RTX 3090 Get the IQ4_XS file on Hugging Face
ollama run hf.co/ttindall/Qwen3.8-27B-Defiance-Uncensored-MTP-GGUF:IQ4_XS

Files and context on RTX 3090

Each file of Qwen3.8-27B-Defiance-Uncensored-MTP-GGUF (and of GGUF versions the site has analyzed), and how much context fits next to it, with the context cache in 16-bit or 8-bit.

FileSizeOn RTX 3090 Context (16-bit)Context (8-bit)
Q6_K25.9 GBDoesn't fit——
IQ4_XS15.7 GBFits86K171K

Qwen3.8-27B-Defiance-Uncensored-MTP-GGUF on other hardware

Popular models that run on RTX 3090

Assumes 90% of the card's memory is usable and at least 4K tokens of context for one conversation, with the context cache in 16-bit unless noted. Fits leaves at least 20% of that memory for context; Tight leaves less.