AMD Ontario APU pictured,die size ~77mm^2

[mAJORD]

800MHz Ontario without GPU is 5w. That is anything but low power.Even the old Atom, the 2008 generation, did 2w at 2GHz under a thermal virus. That is low power. Ontario could very well outperform it 2 or 3x. But it gobbles more power by the same ratio.

T56N - 18W, 1.6 GHz, dual core, GPU, DDR3
T48N - 18W, 1.4 GHz, dual core, GPU, DDR3
T40N - 9W, 1.0 GHz, dual core, GPU, LVDDR3

T52R - 18W, 1.5 GHz, single core, GPU, DDR3
T23R - 9W, 1.2 GHz, single core, GPU, LVDDR3

T48L - 18W, 1.4 GHz, dual core, no GPU, DDR3
T24L - 5W, 800 MHz, single core, no GPU, LVDDR3



ATOM with IMC and GPU :

D525 - 13W , 1.80 GHz, dual core, GPU
D425 - 10W , 1.80 GHz, single core, GPU

N550 - 8.5W, 1.50 GHz, dual core, GPU

N475 - 6.5W, 1.83 GHz, single core, GPU
N450 - 5.5W, 1.66 GHz, single core, GPU

The new Z6xx series isn't shown on Intel's site.
Even so , some comparisons :
High power -
T56N - 18W, 1.6 GHz, dual core, GPU, DDR3
T48N - 18W, 1.4 GHz, dual core, GPU, DDR3
vs.
D525 - 13W , 1.80 GHz, dual core, GPU
N550 - 8.5W, 1.50 GHz, dual core, GPU

Mid -
T52R - 18W, 1.5 GHz, single core, GPU, DDR3
T23R - 9W, 1.2 GHz, single core, GPU, LVDDR3
vs.
N475 - 6.5W, 1.83 GHz, single core, GPU

Low-
T24L - 5W, 800 MHz, single core, no GPU, LVDDR3
vs.
N450 - 5.5W, 1.66 GHz, single core, GPU

Assuming 2x better performance per clock from Bobcat vs. Atom and better GPU performance, it is still way too high.



Before telling others to "learn" you should be sure you aren't telling nonsense yourself.
The current, second generation Atom, is a SoC design with CPU,GPU and NB on the same die. It's spreadsheets aren't on Intel's site ( or at least I couldn't find the Z6xx series ) but Intel claims it can do 1.5GHz in smartphones.
The 32nm generation should be at ARM power levels. Then the battle gets interesting.


No.

How is it still way to high?

All the competing Atom SoCs have virtually the same TDP, with a considerably weaker GPU, and likely still lower CPU performance.

The 18w Models are in a different segment.

You've so far failed to prove the actual cores aren't capable of sub-1w. We simply don't know the Frequency vs Consumption relationship, nor the IPC of the chip yet.