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Can I run ukisai_Swift-Qwen3.8-27b-GGUF on an RTX 5090?

Yes, just

Its Q6_K_L file (25.0 GB) fits in the 28.8 GB an RTX 5090 can use, with room for ≈ 55K tokens of context.

Full analysis of ukisai_Swift-Qwen3.8-27b-GGUF Everything that runs on RTX 5090 Get the Q6_K_L file on Hugging Face
ollama run hf.co/bartowski/ukisai_Swift-Qwen3.8-27b-GGUF:Q6_K_L

Files and context on RTX 5090

Each file of ukisai_Swift-Qwen3.8-27b-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)
BF1654.7 GBDoesn't fit——
Q8_029.1 GBDoesn't fit——
Q6_K_L25.0 GBTight55K110K
Q6_K23.9 GBTight71K143K
Q6_K_S22.9 GBFits86K173K
Q5_K_M20.9 GBFits115K230K
Q5_K_S19.6 GBFits135K256K
Q4_K_L18.8 GBFits146K256K
Q4_117.8 GBFits161K256K
IQ4_NL17.4 GBFits167K256K
Q4_K_M17.4 GBFits167K256K
Q4_K_S16.4 GBFits183K256K
Q4_016.3 GBFits183K256K
IQ4_XS15.5 GBFits196K256K
IQ3_M14.9 GBFits205K256K
Q3_K_L14.1 GBFits216K256K
Q3_K_M13.4 GBFits227K256K
IQ3_XS12.8 GBFits236K256K
Q3_K_S12.7 GBFits237K256K
IQ3_XXS12.3 GBFits243K256K
Q2_K10.8 GBFits256K256K
IQ2_M10.5 GBFits256K256K
IQ2_S9.68 GBFits256K256K
IQ2_XS9.09 GBFits256K256K
IQ2_XXS8.88 GBFits256K256K

ukisai_Swift-Qwen3.8-27b-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.