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Can I run Qwen3.8-27B-Uncensored-Cyber-agentic-imatrix-GGUF on an RTX 5090?

Yes

Its IQ4_XS file (16.5 GB) fits in the 28.8 GB an RTX 5090 can use, with room for ≈ 181K tokens of context.

Full analysis of Qwen3.8-27B-Uncensored-Cyber-agentic-imatrix-GGUF Everything that runs on RTX 5090 Get the IQ4_XS file on Hugging Face
ollama run hf.co/cyjin-yl/Qwen3.8-27B-Uncensored-Cyber-agentic-imatrix-GGUF:IQ4_XS

Files and context on RTX 5090

Each file of Qwen3.8-27B-Uncensored-Cyber-agentic-imatrix-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 5090 Context (16-bit)Context (8-bit)
IQ4_XS16.5 GBFits181K256K
Qwen3.8-27B-Uncensored-Cyber-IQ4_XS-imatrix-fromq816.1 GBFits187K256K

Qwen3.8-27B-Uncensored-Cyber-agentic-imatrix-GGUF on other hardware

Popular models that run on RTX 5090

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.