Qualcomm Snapdragon 435 Advantages
Larger memory bandwidth (6.4GB/s vs 5.3GB/s)
Lower TDP (4W vs 5W)
Qualcomm Snapdragon 636 Advantages
Better graphics card performance FLOPS (0.1843 TFLOPS vs 0.0432 TFLOPS )
Higher Frequency (1800MHz vs 1400MHz)
More modern manufacturing process (14nm vs 28nm)
Released 1 years and 8 months late