While doing some tests using Rawalanche’s interior test scene from this thread: https://blenderartists.org/t/cycles-performance/1121187
I found out that min bounces has a big impact on “cloudy” noise seen most on white surfaces in interiors… Makes sense…
If min bounces is set to a high number the cloudiness gets much better at the cost of about +20% to render time, however to get the same result with low min bounces (or with no setting in 2.8) we would have to render much more samples than +20%.
This is not possible to set up now in 2.8 and I believe to get the same result we would have to render the scene much longer than in 2.79 with high min bounces.
RMB and open image in new tab to see differences. Not sure what happened to the click to open gallery
transparent min 10
transparent max 10
max bounce 10
min bounce 6
Max bounce 10
rendered to match rendertime of 2.79