Samsung Exynos 880 Advantages
More modern manufacturing process (8nm vs 10nm)
Lower TDP (5W vs 9W)
Released 3 years and 6 months late
Qualcomm Snapdragon 835 Advantages
Better graphics card performance FLOPS (0.5675 TFLOPS vs 0.2592 TFLOPS )
Higher Frequency (2450MHz vs 2000MHz)