Qualcomm Snapdragon 855 Advantages
Better graphics card performance FLOPS (0.8985 TFLOPS vs 0.4864 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 17GB/s)
Higher Frequency (2840MHz vs 2200MHz)
More modern manufacturing process (7nm vs 8nm)
Qualcomm Snapdragon 480 Plus Advantages
Lower TDP (3W vs 6W)
Released 2 years and 10 months late