MediaTek Dimensity 900 Advantages
Lower TDP (4W vs 6W)
Released 7 months late
HiSilicon Kirin 9000E Advantages
Better graphics card performance FLOPS (2.1373 TFLOPS vs 0.621 TFLOPS )
Larger memory bandwidth (44GB/s vs 18.4GB/s)
Higher Frequency (3130MHz vs 2400MHz)
More modern manufacturing process (5nm vs 6nm)