Been updating the OS on my old faithful (Panasonic CF-53), as well as setting up Gentoo on the Argon One Up CM5.
Package builds are demonstrably faster on the CM5 than the CF-53. As in big builds like `webkit-gtk` are building a lot faster on the CM5 than they are on the CF-53.
The CF-53 is a Core i5-3320M; hyperthreaded dual-core x86-64 running 2.6GHz, there's 8GB RAM.
The CM5 is a Broadcom BCM2712; quad-core ARM Cortex A76 running at 2.4GHz, and the module I have sports 16GB RAM.
The CM5 is leaving the old machine in the dust in all areas except video acceleration… haven't quite got that working in X11 yet (I'll move to Wayland when it's ready… it isn't now for my use case).
I guess I'll know more once I get more of my standard desktop applications up and running.