Qualcomm Snapdragon 662 Advantages
Lower TDP (4W vs 9W)
Released 2 years and 4 months late
HiSilicon Kirin 970 Advantages
Better graphics card performance FLOPS (0.3318 TFLOPS vs 0.2432 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 13.9GB/s)
Higher Frequency (2360MHz vs 2000MHz)
More modern manufacturing process (10nm vs 11nm)