HiSilicon Kirin 820 Advantages
Larger memory bandwidth (31.78GB/s vs 17GB/s)
Qualcomm Snapdragon 780G Advantages
Better graphics card performance FLOPS (0.7526 TFLOPS vs 0.6528 TFLOPS )
Higher Frequency (2400MHz vs 2360MHz)
More modern manufacturing process (5nm vs 7nm)
Released 1 years late