Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.576 TFLOPS )
Larger memory bandwidth (44GB/s vs 34.1GB/s)
Higher Frequency (2730MHz vs 2490MHz)
Released 1 years and 1 months late
Apple A12 Bionic Advantages
Lower TDP (6W vs 9W)