x86 tends to have more I/O than ARM Phone SoCs where a reasonably powerful CPU is simply trapped in the SoC with no meaningful way to take advantage of it either in laptops or for desktops. The Raspberry Pi has 1 PCIe 2.0 lane. A lot of x86 chips have 4 lanes and usually at least PCIe 3.0 if not PCIe 4.0.

The other problem is that "Apple Silicon" is just one slice of the market. When you think about how you didn't even mention ARM it kind of shows that you have very little confidence in ARM yet you still bash x86.