Qualcomm Snapdragon 430 Advantages
Lower TDP (6W vs 9W)
Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.0432 TFLOPS )
Higher Frequency (2730MHz vs 1400MHz)
More modern manufacturing process (7nm vs 28nm)
Released 4 years and 1 months late