MediaTek Dimensity 6100 Plus Advantages
More modern manufacturing process (6nm vs 7nm)
Released 3 years and 9 months late
Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.2432 TFLOPS )
Larger memory bandwidth (44GB/s vs 17.07GB/s)
Higher Frequency (2730MHz vs 2200MHz)