450w gold enough?

[Tiamat21]

According to my calculations it should be enough but want some other opinions:

165w-220w GPU think 5700xt
88w ryzen 5600x or 5700x
75w for the pcie Lane.


That's well below the 450w but am I being too easy going here?

 

[Tiamat21]

Low budget sfx build and the sf450 is more available and cheaper than it's counterparts