MediaTek Helio P90 Advantages
Lower TDP (5W vs 6W)
Apple A15 Bionic Advantages
Better graphics card performance FLOPS (1.7126 TFLOPS vs 0.1552 TFLOPS )
Larger memory bandwidth (34.1GB/s vs 13.91GB/s)
Higher Frequency (3230MHz vs 2200MHz)
More modern manufacturing process (5nm vs 12nm)
Released 2 years and 10 months late