Samsung Exynos 7904 Advantages
Lower TDP (5W vs 9W)
Released 1 years and 5 months late
HiSilicon Kirin 970 Advantages
Better graphics card performance FLOPS (0.3318 TFLOPS vs 0.0493 TFLOPS )
Higher Frequency (2360MHz vs 1800MHz)
More modern manufacturing process (10nm vs 14nm)