Qualcomm Snapdragon 678 Advantages
Released 1 years and 5 months late
Qualcomm Snapdragon 855 Plus Advantages
Better graphics card performance FLOPS (1.0368 TFLOPS vs 0.3244 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 14.9GB/s)
Higher Frequency (2960MHz vs 2200MHz)
More modern manufacturing process (7nm vs 11nm)