Qualcomm Snapdragon 636 Advantages
Better graphics card performance FLOPS (0.1843 TFLOPS vs 0.148 TFLOPS )
More modern manufacturing process (14nm vs 28nm)
Lower TDP (5W vs 6W)
Released 3 years and 8 months late
Qualcomm Snapdragon 801 Advantages
Larger memory bandwidth (14.9GB/s vs 5.3GB/s)
Higher Frequency (2500MHz vs 1800MHz)