CPU+PSU Upgrade: Need Suggestions

 I have been rocking a Ryzen 5 3600X for a while and I think it's time for an upgrade.  My current thought is to go with a Ryzen 7 5800x3D. This upgrade path will take me to the top end of CPUs that my motherboard (Gigabyte X570 Aorus Elite) can support and should improve performance in New World.

 The AMD x3D CPUs have been noted to improve gaming performance for many games and seem particularly well suited to gaming performance over other processing tasks.  However, there is a recommendation to upgrade to a 1,000W PSU (power supply) at the same time.

 I have a current 650W PSU that has followed me for multiple builds now.  It has been ole' reliable but with recent crashing issues requiring me to undervolt my GPU the PSU is showing its underpowered nature.  So I will be on the hunt for a 1,000W PSU and open to any suggestions.  I am hoping to find a modular PSU so I can swap the PSUs without having to redo cabling.

 I am having issues logging New World's performance (external tracking is now showing an average FPS of 0.1....).  I do want to figure this out so I can do some good before and after to share with the New World community so open to ideas here as well.