Qualcomm Snapdragon 670 Advantages
Better graphics card performance FLOPS (0.3584 TFLOPS vs 0.1248 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 7.5GB/s)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (9W vs 11W)
Released 1 years and 10 months late
Qualcomm Snapdragon 626 Advantages
Higher Frequency (2200MHz vs 2000MHz)