MediaTek Helio P20 Advantages
Higher Frequency (2300MHz vs 2000MHz)
Lower TDP (5W vs 9W)
Qualcomm Snapdragon 670 Advantages
Better graphics card performance FLOPS (0.3584 TFLOPS vs 0.0576 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 12.8GB/s)
More modern manufacturing process (10nm vs 16nm)
Released 2 years and 6 months late