Samsung Exynos 8890 Advantages
Larger memory bandwidth (26.82GB/s vs 14.9GB/s)
Higher Frequency (2300MHz vs 2000MHz)
Lower TDP (5W vs 6W)
Qualcomm Snapdragon 690 Advantages
Better graphics card performance FLOPS (0.4864 TFLOPS vs 0.2496 TFLOPS )
More modern manufacturing process (8nm vs 14nm)
Released 4 years and 7 months late