It always depends on the CPU power you use. We render with 4x E5 2620 Xeon CPU (48 buckets)
The good thing is that Moore’s law & vlado are always pushing those number in the right direction
Honestly, when I look at the cheat sheet of Lele, my opinion (and I understand many will disagree) is that the first image is an acceptable draft, the second one is a final render, and the three others are overkill (noise & rendertime). My target Noise Thresold seems to be 0.01, but actually when I make a test on real case scenario, I’ve found that 0.05 is good enough for my taste and it renders under the hour (but there is a lot of red on some materials, I guess I’ll have to up the AA max). Am I normal ?