Qwen3.8 27B
on AMD RX 7900 XTX · llama.cpp
Summary
User compares Qwen3.8-27B at 47.9 tok/s on an RX 7900 XTX 24GB against Qwen3.8-Flash-Next at 36.8 tok/s on an MI50 32GB.
Setup is llama.cpp with UD-Q4_K_XL and F16 KV cache for the 27B; Strata with IQ3_S and fp16 KV cache for Flash-Next. Both ran through an OpenAI-compatible API with temp 1.0, top_p 0.95, top_k 20.
Speed figures cover AIME26 and LiveCodeBench generation (1.34M output tokens over 7.8 h for the 27B). The 27B scored 145/166 on the eval suite versus 151/166 for Flash-Next, a difference the user notes is not statistically significant (p = 0.18).