Qualcomm Snapdragon 665 Advantages
Better graphics card performance FLOPS (0.2432 TFLOPS vs 0.0576 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 12.8GB/s)
More modern manufacturing process (11nm vs 16nm)
Released 3 years and 2 months late
MediaTek Helio P20 Advantages
Higher Frequency (2300MHz vs 2000MHz)