Qualcomm Snapdragon 662 Advantages
Lower TDP (4W vs 5W)
Released 2 years late
Samsung Exynos 9810 Advantages
Better graphics card performance FLOPS (0.3706 TFLOPS vs 0.2432 TFLOPS )
Larger memory bandwidth (28.7GB/s vs 13.9GB/s)
Higher Frequency (2900MHz vs 2000MHz)
More modern manufacturing process (10nm vs 11nm)