MediaTek Dimensity 800U Advantages
More modern manufacturing process (7nm vs 10nm)
Released 2 years and 7 months late
Samsung Exynos 9810 Advantages
Better graphics card performance FLOPS (0.3706 TFLOPS vs 0.3264 TFLOPS )
Larger memory bandwidth (28.7GB/s vs 17.07GB/s)
Higher Frequency (2900MHz vs 2400MHz)
Lower TDP (5W vs 10W)