Samsung Exynos 990 Advantages
Better graphics card performance FLOPS (1.126 TFLOPS vs 0.375 TFLOPS )
Larger memory bandwidth (44GB/s vs 28.7GB/s)
Higher Frequency (2730MHz vs 2314MHz)
More modern manufacturing process (7nm vs 10nm)
Released 2 years and 8 months late
Samsung Exynos 8895 Advantages
Lower TDP (5W vs 9W)