For what's worth, on high, 27b is better, but both models on high are too slow to be used (way too many output tokens).
On low, 3.8 Flash Next is better AND considerably faster.
My results[0][1], on a RTX 3090 + 128GB DDR4 RAM. I still have to see if I can optimize any more settings for either, but I think I will switch from 3.8 27b to 3.8 Flash Next for my local LLM uses.
[0]: https://aibenchy.com/?q=qwen+3.8+27b%2C+qwen+3.8+next
[1]: https://aibenchy.com/compare/qwen-qwen3-8-27b-low/qwen-qwen3...