MediaTek Dimensity 900 Advantages
More modern manufacturing process (6nm vs 7nm)
Lower TDP (4W vs 5W)
Released 10 months late
Qualcomm Snapdragon 865 Plus Advantages
Better graphics card performance FLOPS (1.3721 TFLOPS vs 0.621 TFLOPS )
Larger memory bandwidth (44GB/s vs 18.4GB/s)
Higher Frequency (3100MHz vs 2400MHz)