Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.0418 TFLOPS )
Larger memory bandwidth (44GB/s vs 13.9GB/s)
Higher Frequency (2730MHz vs 2000MHz)
More modern manufacturing process (7nm vs 12nm)
MediaTek Helio G25 Advantages
Lower TDP (2W vs 9W)
Released 8 months late