MediaTek Dimensity 7020 Advantages
Larger memory bandwidth (51.2GB/s vs 33.4GB/s)
More modern manufacturing process (6nm vs 8nm)
Lower TDP (4W vs 9W)
Released 4 years and 6 months late
Samsung Exynos 9820 Advantages
Better graphics card performance FLOPS (0.607 TFLOPS vs 0.2592 TFLOPS )
Higher Frequency (2730MHz vs 2200MHz)