Qualcomm Snapdragon 690 Advantages
Lower TDP (6W vs 15W)
MediaTek Dimensity 9400 Advantages
Better graphics card performance FLOPS (4.9521 TFLOPS vs 0.4864 TFLOPS )
Larger memory bandwidth (85.3GB/s vs 14.9GB/s)
Higher Frequency (3630MHz vs 2000MHz)
More modern manufacturing process (3nm vs 8nm)
Released 4 years and 4 months late