Samsung Exynos 7904 Advantages
Lower TDP (5W vs 6W)
MediaTek Dimensity 8200 Advantages
Better graphics card performance FLOPS (1.442 TFLOPS vs 0.0493 TFLOPS )
Higher Frequency (3100MHz vs 1800MHz)
More modern manufacturing process (4nm vs 14nm)
Released 3 years and 10 months late