Samsung Exynos 8890 Advantages
Lower TDP (5W vs 15W)
MediaTek Dimensity 9400 Advantages
Better graphics card performance FLOPS (4.9521 TFLOPS vs 0.2496 TFLOPS )
Larger memory bandwidth (85.3GB/s vs 26.82GB/s)
Higher Frequency (3630MHz vs 2300MHz)
More modern manufacturing process (3nm vs 14nm)
Released 8 years and 11 months late