HiSilicon Kirin 950 Advantages
Larger memory bandwidth (25.6GB/s vs 24.8GB/s)
Higher Frequency (2400MHz vs 2100MHz)
Lower TDP (5W vs 7W)
Released 7 months late
Samsung Exynos 7420 Advantages
Better graphics card performance FLOPS (0.1976 TFLOPS vs 0.1152 TFLOPS )
More modern manufacturing process (14nm vs 16nm)