Go with the bigger 850 , and I was an Seasonic / Corsair only guy . But I got a white super flower 1000 watt on Xmas deal with the 16pin for new gpus and it’s impressed me !
I just watched a hardware unboxed review on these and they seemed pretty positive with the brightness . I have a C2 for console gaming and the MSI was actually way above it it terms of nits of brightness.
The card that got me into PC gaming . 9500 pro back for asherons call 2 ! A lot of great cards over the years though . The 7970 and 4200 ti were awesome cards as well !
You can grab a 3080 for that which is awesome. I’m in the same predicament as you . Looking at a 3080 or 7800 xt as the 4070 and above cards are way too expensive