MediaTek Dimensity 6020 Advantages
More modern manufacturing process (7nm vs 10nm)
Lower TDP (6W vs 9W)
Released 5 years and 3 months late
Qualcomm Snapdragon 845 Advantages
Better graphics card performance FLOPS (0.727 TFLOPS vs 0.2432 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 17.07GB/s)
Higher Frequency (2800MHz vs 2200MHz)