Qualcomm Snapdragon 675 Advantages
Better graphics card performance FLOPS (0.3244 TFLOPS vs 0.2432 TFLOPS )
Qualcomm Snapdragon 685 Advantages
Larger memory bandwidth (17GB/s vs 14.9GB/s)
Higher Frequency (2800MHz vs 2000MHz)
More modern manufacturing process (6nm vs 11nm)
Released 4 years and 5 months late