Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.041 TFLOPS )
Larger memory bandwidth (44GB/s vs 11.92GB/s)
Higher Frequency (2730MHz vs 2000MHz)
More modern manufacturing process (7nm vs 12nm)
Released 1 years and 5 months late
MediaTek Helio P22 Advantages
Lower TDP (5W vs 9W)