Qualcomm Snapdragon 435 Advantages
Lower TDP (4W vs 10W)
Qualcomm Snapdragon 888 Advantages
Better graphics card performance FLOPS (1.72 TFLOPS vs 0.0432 TFLOPS )
Larger memory bandwidth (51.2GB/s vs 6.4GB/s)
Higher Frequency (2840MHz vs 1400MHz)
More modern manufacturing process (5nm vs 28nm)
Released 4 years and 10 months late