CPU and Mobo Bundle
CPU and Mobo Bundle
These options seem similar in cost. The Ryzen 9 3900X pairs well with the B550 Aorus Pro AC or I7 11700, while the Z590 Aorus Pro Ax works with both. For your needs at 1080p240hz and video editing, a secondary PC in a few years makes sense. Which one fits better depends on your priorities—performance or future flexibility.
The Ryzen 9 is a superior CPU... I prefer the Ryzen model. It performs better, and the system specs are quite alike.