Qualcomm Snapdragon 801 Advantages
Higher Frequency (2500MHz vs 2200MHz)
Lower TDP (6W vs 9W)
Samsung Exynos 980 Advantages
Better graphics card performance FLOPS (0.2621 TFLOPS vs 0.148 TFLOPS )
Larger memory bandwidth (34.1GB/s vs 14.9GB/s)
More modern manufacturing process (8nm vs 28nm)
Released 5 years and 7 months late