MediaTek Dimensity 7020 Advantages
Larger memory bandwidth (51.2GB/s vs 34.1GB/s)
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 6W)
Released 3 years and 7 months late
HiSilicon Kirin 990 5G Advantages
Better graphics card performance FLOPS (0.6912 TFLOPS vs 0.2592 TFLOPS )
Higher Frequency (2860MHz vs 2200MHz)