I'm getting 30 t/s on RTX 4090D (using 42 out of 48GB VRAM) with UD-Q6_K_XL
https://huggingface.co/unsloth/Qwen3.6-27B-GGUF/discussions/...
https://huggingface.co/unsloth/Qwen3.6-27B-GGUF/discussions/...
The higher quantization - the better results, but more memory is needed. Q8 is the best.