Can I run ThinkingCap-Qwen3.8-27B-NVFP4 on a Radeon RX 7900 XTX?

Yes, just

Its published weights (20.6 GB) fit in the 21.6 GB a Radeon RX 7900 XTX can use, with room for ≈ 13K tokens of context.

Full analysis of ThinkingCap-Qwen3.8-27B-NVFP4 Everything that runs on Radeon RX 7900 XTX Get the weights on Hugging Face

hf download bottlecapai/ThinkingCap-Qwen3.8-27B-NVFP4

Files and context on Radeon RX 7900 XTX

Each file of ThinkingCap-Qwen3.8-27B-NVFP4 (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.

File	Size	On Radeon RX 7900 XTX	Context (16-bit)	Context (8-bit)
As published	20.6 GB	Tight	13K	25K
4-bit (estimate)	15.6 GB	Fits	87K	173K

ThinkingCap-Qwen3.8-27B-NVFP4 on other hardware

NVIDIA H100Yes
RTX 5090Yes
RTX 4090Yes, just
RTX 3090Yes, just
RTX 5060 Ti 16 GBNo
RTX 3060 12 GBNo
RTX 4060No
Radeon RX 7900 XTXYes, just
Mac with 32 GBYes, just
Mac with 64 GBYes
Mac with 128 GBYes

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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.