Apple M4 iPad Advantages
Better graphics card performance FLOPS (4.09 TFLOPS vs 2.617 TFLOPS )
Larger memory bandwidth (120GB/s vs 68.25GB/s)
Higher Frequency (4400MHz vs 3200MHz)
More modern manufacturing process (3nm vs 5nm)
Released 3 years and 6 months late
Apple M1 iPad Advantages
Lower TDP (14W vs 20W)