Qwen3.8 27B Swift Uncensored

User benchmarks Swift-Qwen3.8-27B-Uncensored-MTP at 20.21 t/s generation and 176.86 t/s prompt processing on dual AMD Radeon Instinct MI50 (32GB combined VRAM) under ROCm 10.2, compared against 18.35 t/s and 149.30 t/s under Vulkan Mesa 26.2. Setup is llama.cpp (llama-b11401 for ROCm, llama-b11382 for Vulkan) with Q6_K GGUF weights, both GPUs power limited to 145 watts. ROCm shows +10.14% generation and +18.46% prefill over Vulkan for this model. Across the full nine-model sweep, ROCm gains up to +62.74% on generation but regresses on MoE prefill by up to -15.98%, with high variance (e.g. ±102.56 on Qwen3.5MoE Q4_K prefill).