As a quick note for folks who don't follow embedded SoCs: the NXP i.MX8 [1] is quite high-powered in this niche. It sports eight ARM cores in total: 4X Cortex-A53, 2X Cortex-A72, 2X Cortex-M4F.
As someone who has spent ~four years working on software for a single M4F, that reads like "it's a datacenter on a chip", more or less. It's ... big.
It also has dual-gigabit Ethernet, USB 3.0, USB 2.0, and enough other low/medium-speed serial interfaces to make you go dizzy. :)
I wonder what the pricing will be.
[1]: https://www.nxp.com/products/processors-and-microcontrollers...