MediaTek Helio P22 Advantages
More modern manufacturing process (12nm vs 28nm)
Lower TDP (5W vs 6W)
Released 4 years and 3 months late
Qualcomm Snapdragon 801 Advantages
Better graphics card performance FLOPS (0.148 TFLOPS vs 0.041 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 11.92GB/s)
Higher Frequency (2500MHz vs 2000MHz)