Samsung Exynos 9825 Advantages
Better graphics card performance FLOPS (0.6515 TFLOPS vs 0.487 TFLOPS )
Larger memory bandwidth (33.4GB/s vs 17GB/s)
Higher Frequency (2730MHz vs 2400MHz)
Samsung Exynos 1280 Advantages
More modern manufacturing process (5nm vs 7nm)
Lower TDP (6W vs 9W)
Released 2 years and 7 months late