Samsung Exynos 7880 Advantages
Better graphics card performance FLOPS (0.0912 TFLOPS vs 0.0394 TFLOPS )
Samsung Exynos 850 Advantages
Higher Frequency (2000MHz vs 1900MHz)
More modern manufacturing process (8nm vs 14nm)
Lower TDP (3W vs 4W)
Released 3 years and 4 months late