Qualcomm Snapdragon 626 Advantages
Better graphics card performance FLOPS (0.1248 TFLOPS vs 0.0576 TFLOPS )
More modern manufacturing process (14nm vs 16nm)
Released 8 months late
MediaTek Helio P20 Advantages
Larger memory bandwidth (12.8GB/s vs 7.5GB/s)
Higher Frequency (2300MHz vs 2200MHz)
Lower TDP (5W vs 11W)