Samsung Exynos 9609 's Advantages
More modern manufacturing process (10nm vs 12nm)
Released 6 months late
MediaTek Helio P90 's Advantages
Better graphics card performance FLOPS (0.1552 TFLOPS vs 0.0918 TFLOPS )
Larger memory bandwidth (13.91GB/s vs 11.9GB/s)
Lower TDP (5W vs 9W)