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

[Mechanical Man]

T40N - 9W, 1.0 GHz, dual core, GPU, LVDDR3

ATOM with IMC and GPU :

D525 - 13W , 1.80 GHz, dual core, GPU

Lets take this example of yours and put it in different light. If Bobcat delivers performance expected by BOINC stats( +90% vs atom according to some). Then this 1.0GHz Bobcat will mach 1,9GHz atom in cpu power + has massively better gpu..