Qualcomm Snapdragon 855 's Advantages
Larger memory bandwidth (34.13GB/s vs 34.1GB/s)
Higher Frequency (2840MHz vs 2600MHz)
MediaTek Dimensity 8020 's Advantages
Better graphics card performance FLOPS (0.9792 TFLOPS vs 0.8985 TFLOPS )
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 6W)
Released 4 years and 4 months late