I think its time to retire my Thermaltake Toughpower 650W ATX power supply.
Using the 80 plus test database seems like a good start
https://www.clearesult.com/80plus/manufacturers/115V-Internal?page=7
Fingers crossed LTT starts publishing PSU reviews with that test setup, just wow....
A random interview with a PSU designer:
I'm running MSI's MEG Ai1300P.
It's quiet and has direct fan control while handling whatever I throw at it. It may be overkill for your needs.
I used to have a Corsair CX850M running an Intel i7 and GeForce 3080, and it wasn't meant to 
I kept browning out when pulling too much power at once on the rails even though it technically should have been able to handle it.
for example: upgrade from this 300W PSU
to this 500W PSU
can be a downgrade depending on load parameters...
Thanks for all the helpful advise, in the end I went for a middle of the road PSU
The "Corsair RMe Series RM750e Fully Modular 80PLUS Gold ATX 3.0 & PCIe 5.0 Compliant Power Supply"
When I receive the unit, I'll post some photos.
Another review site that I discovered after the fact is: https://www.cybenetics.com/index.php?option=power-supplies
They even provide component breakdowns
https://www.cybenetics.com/d/cybenetics_XWx.pdf
Hurray for Teapo!
