Samsung Exynos 9611 Advantages
Higher Frequency (2300MHz vs 2000MHz)
More modern manufacturing process (10nm vs 11nm)
Qualcomm Snapdragon 665 Advantages
Better graphics card performance FLOPS (0.2432 TFLOPS vs 0.0918 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 11.9GB/s)
Lower TDP (5W vs 8W)