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

[Lightman]

To me it looks like a cache area (fairly regular structure).


There are different SRAM cells for different purposes (high density/low speed, high current/high speed, single ported, dual ported e.t.c). Not sure if you compared the same.

Yes, but remember that Bobcat is using half-speed L2 cache which means they can go for highest densities