model n total sampler rest steps fibo2_int8 12 19.115 18.727 0.388 50 fibo2_nvfp4_fremd 12 17.600 17.182 0.418 50 krea2_int8 12 2.940 2.676 0.264 8 krea2_nvfp4 12 3.860 3.604 0.256 8 zimage_int8 12 1.555 1.236 0.319 8 zimage_nvfp4 12 1.375 1.042 0.333 8