The TOPTON MU01 fits in one hand, and yet it includes quad-core Intel processors, replaceable RAM, storage and plenty of I/O. The machine starts at under US$270 as a barebones PC and can be configured with up to a Core i7-10510U.
https://www.notebookcheck.net/TOPTON-MU01-An-affordable-mini-PC-available-with-a-choice-of-modern-Intel-processors.522591.0.html