Qualcomm Snapdragon 439 Advantages
Higher Frequency (2000MHz vs 1900MHz)
More modern manufacturing process (12nm vs 14nm)
Released 1 years and 5 months late
Samsung Exynos 7880 Advantages
Better graphics card performance FLOPS (0.0912 TFLOPS vs 0.0432 TFLOPS )
Larger memory bandwidth (12.8GB/s vs 6.4GB/s)
Lower TDP (4W vs 5W)