Samsung Exynos 7885 Advantages
Lower TDP (8W vs 11W)
Released 1 years and 6 months late
Qualcomm Snapdragon 821 Advantages
Better graphics card performance FLOPS (0.3343 TFLOPS vs 0.0704 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 7.46GB/s)
Higher Frequency (2342MHz vs 2200MHz)