MediaTek Dimensity 8020 Advantages
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 6W)
Released 3 years and 9 months late
Qualcomm Snapdragon 855 Plus Advantages
Better graphics card performance FLOPS (1.0368 TFLOPS vs 0.9792 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 34.1GB/s)
Higher Frequency (2960MHz vs 2600MHz)