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Can I run Qwen3-14B-GGUF on a Radeon RX 7900 XTX?

Yes

Its Q8_0 file (15.7 GB) fits in the 21.6 GB a Radeon RX 7900 XTX can use, with room for ≈ 35K tokens of context.

Full analysis of Qwen3-14B-GGUF Everything that runs on Radeon RX 7900 XTX Get the Q8_0 file on Hugging Face
ollama run hf.co/Qwen/Qwen3-14B-GGUF:Q8_0

Files and context on Radeon RX 7900 XTX

Each file of Qwen3-14B-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 Radeon RX 7900 XTX Context (16-bit)Context (8-bit)
Q8_015.7 GBFits35K40K
Q6_K12.1 GBFits40K40K
Q5_K_M10.5 GBFits40K40K
Q5_010.3 GBFits40K40K
Q4_K_M9.00 GBFits40K40K

Qwen3-14B-GGUF on other hardware

Popular models that run on Radeon RX 7900 XTX

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.