Qualcomm Snapdragon 632 Advantages
Lower TDP (5W vs 6W)
Qualcomm Snapdragon 855 Plus Advantages
Better graphics card performance FLOPS (1.0368 TFLOPS vs 0.1248 TFLOPS )
Higher Frequency (2960MHz vs 1800MHz)
More modern manufacturing process (7nm vs 14nm)
Released 1 years and 1 months late