Qualcomm Snapdragon 678 Advantages
Better graphics card performance FLOPS (0.3244 TFLOPS vs 0.024 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 5.34GB/s)
Higher Frequency (2200MHz vs 1400MHz)
More modern manufacturing process (11nm vs 28nm)
Released 4 years and 10 months late
Qualcomm Snapdragon 425 Advantages
Lower TDP (5W vs 6W)