Samsung Exynos 7870 Advantages
Lower TDP (3W vs 8W)
MediaTek Dimensity 800 Advantages
Better graphics card performance FLOPS (0.3328 TFLOPS vs 0.0224 TFLOPS )
Higher Frequency (2000MHz vs 1600MHz)
More modern manufacturing process (7nm vs 14nm)
Released 3 years and 10 months late