Samsung Exynos 7570 Advantages
Lower TDP (4W vs 5W)
HiSilicon Kirin 820 Advantages
Better graphics card performance FLOPS (0.6528 TFLOPS vs 0.0208 TFLOPS )
Larger memory bandwidth (31.78GB/s vs 4.2GB/s)
Higher Frequency (2360MHz vs 1400MHz)
More modern manufacturing process (7nm vs 14nm)
Released 3 years and 7 months late