Qwen3.8-27B on RX 9070 XT: custom HIP engine, 84.8 tok/s (MTP) / 80.8 tok/s (DFlash2 drafter)
Qwen3.8-27BSingle 16 GB RDNA4 card, custom IQ4_S256 quant, WY-form GDN prefill + WMMA flash attention; lossless speculative decoding verified byte-identical across three configs.