
At first glance, it looks like the Athlon 5350 uses significantly more power than Intel's Celeron J1900, especially when it comes to the combined CPU and GPU load. But even in that extreme case, only 13 W separate the two platforms.
To put our measurements into perspective, many high-end desktop PCs use more power at idle than these systems under the most taxing load we can contrive.
When they drop down to idle, these systems are separated by a negligible 3.5 W.

As for thermals, Intel appears to fare quite a bit worse. But bear in mind that the Celeron J1900 is using a passive heat sink, whereas the Athlon benefits from active cooling.
Intel comes away with the advantage then, as its highly-integrated motherboard/processor combo generates no noise and won't accumulate dust.
- The AM1 Platform: Kabini Surfaces On The Desktop
- One Bay Trail-D And Two AM1 Motherboards
- Test Systems And Benchmarks
- Synthetic Benchmarks
- Media Encoding Benchmarks
- Productivity Benchmarks
- File Compression Benchmarks
- Game Benchmarks
- Power And Temperature
- AMD's AM1 Platform Is A Winner, But Who Is Playing The Game?
It's just convenience and cost efficiency, really, on the one hand, you've got 1 motherboard, CPU, tower, PSU, OS and IP adress for remote control and 8 HDDs and on the other, you've still got 8 HDDS, but 2 of everything else. Power consumption wouldn't make THAT much of a difference, since storage servers mostly idle, but the noise and size do take their toll.
It's just convenience and cost efficiency, really, on the one hand, you've got 1 motherboard, CPU, tower, PSU, OS and IP adress for remote control and 8 HDDs and on the other, you've still got 8 HDDS, but 2 of everything else. Power consumption wouldn't make THAT much of a difference, since storage servers mostly idle, but the noise and size do take their toll.
I think the 1920x1080 and 1600x900 graph for Dota 2 are the wrong way round? And it would be good to also have had a graph for its performance with dedicated GPU.
I think the problem is the PSU. Using 850W XFX is total overkill and even being certified as gold class, it has high efficiency at 20% load, which is 170 W. Therefore the PSU is used in non-efficient area and can simply add 15 - 20 W extra to the final power consumption.
Next time maybe borrow PicoPSU and some efficient brick.