HiSilicon Kirin 970 Advantages
Larger memory bandwidth (29.8GB/s vs 17.07GB/s)
MediaTek Dimensity 820 Advantages
Better graphics card performance FLOPS (0.416 TFLOPS vs 0.3318 TFLOPS )
Higher Frequency (2600MHz vs 2360MHz)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (8W vs 9W)
Released 2 years and 8 months late