why shouldn't that be good, so about 25% of the heat goes out to the back. like with the blower design.
the pads can't be that bad, at 72°C temp in closed case.
https://www.igorslab.media/wp-content/uploads/2019/08/02-IR-Gaming-Closed-Case-1.png
i think the MSI Evoke is a very good card for the ncase and my choice nr. 1. the evoke also has horizontal larmellen and you can also get them quietly...