Qualcomm Snapdragon 450 Advantages
Lower TDP (3W vs 4W)
MediaTek Dimensity 900 Advantages
Better graphics card performance FLOPS (0.621 TFLOPS vs 0.1152 TFLOPS )
Larger memory bandwidth (18.4GB/s vs 7.46GB/s)
Higher Frequency (2400MHz vs 1800MHz)
More modern manufacturing process (6nm vs 14nm)
Released 3 years and 11 months late