Qualcomm Snapdragon 855 Advantages
Better graphics card performance FLOPS (0.8985 TFLOPS vs 0.4864 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 14.9GB/s)
Higher Frequency (2840MHz vs 2000MHz)
More modern manufacturing process (7nm vs 8nm)
Qualcomm Snapdragon 690 Advantages
Released 1 years and 6 months late