I remember when the 8910 came out, it supposedly had some of its cooling redesign inspired by the cooling for the Alienware R8, I think. I have read, though, that its cooling turned out not to be all that great on the XPS. Not sure if the R8 managed it better.
I never quite got any solid confirmation on that. Still, my son's video card (PowerColor RX 580 at the time) seemed to need to spin up the fans more, and audibly so, in his 8910 than it did in his DIYPC-Trio-GT-RGB. Of course, the latter is a much larger case with 4 fans included.
But, was the 8910/8920/8930 good at cooling, better than the XPS 8300/8500/8700? Is the new 8940 a big step backward in cooling ability?
I'll admit that seeing them moving to a server-style PSU is very disappointing. Maybe they're trying to draw a much sharper line between the general use home PC and the enthusiast (Alienware) one? I was given to understand that even that R9 redesign for the Alienware didn't improve cooling, not sure if it made it worse.
I have to admit - I've liked Dells, they've been good to me for my needs, but this seems a bit like a step in the wrong direction.