A:Answer I have researched this quite thoroughly and as long as you chose a graphics card that consumes less then 250w, you should have no proble.
Having said that, 250w is the max threshold and will be pushing the psu to its limits. If you can keep it to 200w +/- it may be safer in the long run...
Anything beyond that and you will indeed want a beefier psu, I would recommend a 750w or better if you are going to go through all the trouble to swap the psu...
Me personally, I am waiting on actual reviews for the 3060ti, but in all honesty, my 2060 works so well for what I use it for I am probablly going to skip the 30xx generation then just buy the most capable 200w +/- gpu in 2022...