Samsung Exynos 7870 Advantages
Lower TDP (3W vs 6W)
Apple A15 Bionic Advantages
Better graphics card performance FLOPS (1.7126 TFLOPS vs 0.0224 TFLOPS )
Higher Frequency (3230MHz vs 1600MHz)
More modern manufacturing process (5nm vs 14nm)
Released 5 years and 7 months late