Samsung Exynos 7870 Advantages
Lower TDP (3W vs 8W)
Apple A17 Pro Advantages
Better graphics card performance FLOPS (2.1472 TFLOPS vs 0.0224 TFLOPS )
Higher Frequency (3780MHz vs 1600MHz)
More modern manufacturing process (3nm vs 14nm)
Released 7 years and 7 months late