Can I run Qwen3-4B-MLX-bf16 on an RTX 6000 Ada?

Yes

Its published weights (8.04 GB) fit in the 43.2 GB an RTX 6000 Ada can use, with room for ≈ 40K tokens of context.

hf download Qwen/Qwen3-4B-MLX-bf16

Files and context on RTX 6000 Ada

Each file of Qwen3-4B-MLX-bf16 (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.

Qwen3-4B-MLX-bf16 on other hardware

Popular models that run on RTX 6000 Ada

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.