Originally Posted by Petykemano
These chips are true Carrizo chips (2MB L2) that I suppose couldn't make it to fit into 35W TDP.
Long time lurker, I see?
You probably aren't that far off the mark. Excavator is like AMD's version of Broadwell: designed primarily for low-power and embedded systems. But, at its core, it's still a modified version of good ol' Bulldozer. It's an APU that ran hot and had faulty graphics.
Originally Posted by tpi2007
It seems that they really want to differentiate it from the higher end Steamroller based APUs. Cutting PCIe lanes from 16 to 8 seems like that extra step to make it clear, when not even the dual core 7470K gets that treatment.
I suspect that's due to Carrizo being Carrizo and not to differentiate the new SKU. Does anybody know how many lanes full Carrizo supports? It's a SoC for low-power laptops, so I'm not really sure it needs anything.
And I'm not kidding about the SoC part. It's one step beyond an APU: the CPU, the FPU, the memory controller, the northbridge, and even a cut-down version of the southbridge are all integrated onto a single die. Compare this to Intel's Core M where the southbridge is a separate die, albeit on the same package. Compare it to LGA-115# platforms and AMD's prior FM chips where the southbridge is a separate die. Compare it to Intel's LGA-2011 chips where there is no GPU. Then compare it to Intel's LGA-1366 and AMD's AM3+ and earlier where the northbridge isn't even on the die. There's been a lot of integration of a lot of components in just a few years.