Samsung Exynos 7420 Advantages
Lower TDP (7W vs 9W)
Qualcomm Snapdragon 835 Advantages
Better graphics card performance FLOPS (0.5675 TFLOPS vs 0.1976 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 24.8GB/s)
Higher Frequency (2450MHz vs 2100MHz)
More modern manufacturing process (10nm vs 14nm)
Released 1 years and 7 months late