Qualcomm Snapdragon 855 Advantages
Better graphics card performance FLOPS (0.8985 TFLOPS vs 0.2496 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 26.82GB/s)
Higher Frequency (2840MHz vs 2300MHz)
More modern manufacturing process (7nm vs 14nm)
Released 3 years and 1 months late
Samsung Exynos 8890 Advantages
Lower TDP (5W vs 6W)