Qualcomm Snapdragon 855 Advantages
Better graphics card performance FLOPS (0.8985 TFLOPS vs 0.684 TFLOPS )
Higher Frequency (2840MHz vs 2500MHz)
MediaTek Dimensity 920 Advantages
Larger memory bandwidth (51.2GB/s vs 34.13GB/s)
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 6W)
Released 2 years and 8 months late