Samsung Exynos 1280 Advantages
Better graphics card performance FLOPS (0.487 TFLOPS vs 0.0493 TFLOPS )
Higher Frequency (2400MHz vs 1800MHz)
More modern manufacturing process (5nm vs 14nm)
Released 3 years and 1 months late
Samsung Exynos 7904 Advantages
Lower TDP (5W vs 6W)