Samsung Exynos 7872 Advantages
Lower TDP (5W vs 11W)
Released 2 years and 2 months late
Qualcomm Snapdragon 820 Advantages
Better graphics card performance FLOPS (0.3194 TFLOPS vs 0.0384 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 3.7GB/s)
Higher Frequency (2150MHz vs 2000MHz)