Qualcomm Snapdragon 430 Advantages
Lower TDP (6W vs 11W)
Qualcomm Snapdragon 626 Advantages
Better graphics card performance FLOPS (0.1248 TFLOPS vs 0.0432 TFLOPS )
Higher Frequency (2200MHz vs 1400MHz)
More modern manufacturing process (14nm vs 28nm)
Released 1 years and 1 months late