Gemma 4 31B

User reports Gemma 4 31B at 3.5 t/s generation and 148.3 t/s prompt processing on a Minisforum MS-S1 with an AMD Ryzen AI Max+ 395 (Strix Halo) and Radeon 8060S Graphics. Setup is llama.cpp b8640 with BF16 weights, flash attention on, batch and ubatch 2048, and ngl 99 on Vulkan/RADV. The figures are separate synthetic llama-bench tests, not one 2048-in/128-out request; TG128 was 3.46 t/s and was not measured after the largest prompt context.