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Can I run Qwen3.8-4B-Distill-GGUF on an RTX 4090?

Yes

Its BF16 file (8.67 GB) fits in the 21.6 GB an RTX 4090 can use, with room for ≈ 256K tokens of context.

Full analysis of Qwen3.8-4B-Distill-GGUF Everything that runs on RTX 4090 Get the BF16 file on Hugging Face
ollama run hf.co/empero-ai/Qwen3.8-4B-Distill-GGUF:BF16

Files and context on RTX 4090

Each file of Qwen3.8-4B-Distill-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 4090 Context (16-bit)Context (8-bit)
BF168.67 GBFits256K256K
Q8_04.61 GBFits256K256K
Q6_K3.56 GBFits256K256K
Q5_K_M3.16 GBFits256K256K
Q4_K_M2.78 GBFits256K256K

Qwen3.8-4B-Distill-GGUF on other hardware

Popular models that run on RTX 4090

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.