Samsung Exynos 7870 Advantages
Lower TDP (3W vs 5W)
Qualcomm Snapdragon 865 Plus Advantages
Better graphics card performance FLOPS (1.3721 TFLOPS vs 0.0224 TFLOPS )
Higher Frequency (3100MHz vs 1600MHz)
More modern manufacturing process (7nm vs 14nm)
Released 4 years and 5 months late