MediaTek Helio P90 Advantages
Larger memory bandwidth (13.91GB/s vs 5.3GB/s)
Higher Frequency (2200MHz vs 1800MHz)
More modern manufacturing process (12nm vs 14nm)
Released 1 years and 1 months late
Qualcomm Snapdragon 636 Advantages
Better graphics card performance FLOPS (0.1843 TFLOPS vs 0.1552 TFLOPS )