MediaTek Dimensity 820 Advantages
Better graphics card performance FLOPS (0.416 TFLOPS vs 0.1152 TFLOPS )
Larger memory bandwidth (17.07GB/s vs 7.46GB/s)
Higher Frequency (2600MHz vs 1800MHz)
More modern manufacturing process (7nm vs 14nm)
Released 2 years and 11 months late
Qualcomm Snapdragon 450 Advantages
Lower TDP (3W vs 8W)