Qwen3.8 125B (6B active) Flash-Next

User reports Qwen3.8-Flash-Next at 150 tok/s decode and about 4,400 tok/s prompt on a single RTX 5080 16 GB. Setup is Strata v0.2.1 with IQ3_XXS GGUF, int8 KV cache and 64K context, MTP speculation on, 15 CPU expert workers and an expert cache of 5,310 experts (8.61 GiB VRAM). Decode median 150.0 tok/s over 9 runs (126.7-170.2); fresh prompt runs gave 3,755 tok/s at 4K, 4,396 at 16K and 4,412 at 32K. The card was tuned with LACT (memory +6000, core capped 2850 MHz, 360 W), so stock cards may be slower.