Samsung Exynos 7880 Advantages
Lower TDP (4W vs 5W)
Samsung Exynos 1380 Advantages
Better graphics card performance FLOPS (0.608 TFLOPS vs 0.0912 TFLOPS )
Larger memory bandwidth (51.2GB/s vs 12.8GB/s)
Higher Frequency (2400MHz vs 1900MHz)
More modern manufacturing process (5nm vs 14nm)
Released 6 years and 1 months late