"NOTE: Sorry, I should point out that the images in this post aren't direct "comparison" shots between the consoles. I simply picked the best images to highlight here, not ones directly comparing temperatures at certain run times."
but anyway, both systems run cool and the images you should be looking at should the ones where the SoC is located, not else where on the systems. The PCB can handle extreme temps to begin with so the other parts of the system doesn't really matter.
An example, this is the hottest point of the PS4, but it's the vents, otherwords that is the amount of heat the PS4 is removing from the system which is remarkable because it keeps the SoC cooler than the Xbones.
3770K @ 4.5ghz| GTX Titan @ 1300/6500 | Asus Maximus V Formula | Asus PB278Q 2560x1440 | Windows 8.1 | PS4 | Atari 2600
I had seen/read about the XBO running hot. I loaded up my fireplace the other night, and it climbed to probably 26-28 degrees in my living room (had to start opening windows), all the while my XBO was no hotter than my 360 ever was, even after playing it for 4 straight hours.
[all_that_juice] I guess when you have over 1000 karma you can get away with anything on here.