Qualcomm Snapdragon 865 Advantages
Lower TDP (5W vs 8W)
Samsung Exynos 2100 Advantages
Better graphics card performance FLOPS (1.5304 TFLOPS vs 1.2021 TFLOPS )
Larger memory bandwidth (51.2GB/s vs 44GB/s)
Higher Frequency (2900MHz vs 2840MHz)
More modern manufacturing process (5nm vs 7nm)
Released 1 years late