Apple A9 Advantages
Better graphics card performance FLOPS (0.2496 TFLOPS vs 0.0494 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 12.8GB/s)
More modern manufacturing process (14nm vs 16nm)
MediaTek Helio P23 Advantages
Higher Frequency (2300MHz vs 1850MHz)
Lower TDP (2.5W vs 5W)
Released 1 years and 11 months late