MediaTek Dimensity 900 Advantages
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 6W)
Released 2 years and 1 months late
Qualcomm Snapdragon 860 Advantages
Better graphics card performance FLOPS (1.0368 TFLOPS vs 0.621 TFLOPS )
Larger memory bandwidth (34.13GB/s vs 18.4GB/s)
Higher Frequency (2960MHz vs 2400MHz)