Qualcomm Snapdragon 665 Advantages
Better graphics card performance FLOPS (0.2432 TFLOPS vs 0.0432 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 6.4GB/s)
Higher Frequency (2000MHz vs 1400MHz)
More modern manufacturing process (11nm vs 28nm)
Released 3 years and 2 months late
Qualcomm Snapdragon 435 Advantages
Lower TDP (4W vs 5W)