HiSilicon Kirin 950 Advantages
Larger memory bandwidth (25.6GB/s vs 14.9GB/s)
Higher Frequency (2400MHz vs 2000MHz)
Qualcomm Snapdragon 665 Advantages
Better graphics card performance FLOPS (0.2432 TFLOPS vs 0.1152 TFLOPS )
More modern manufacturing process (11nm vs 16nm)
Released 3 years and 5 months late