Originally Posted by Hueristic
Steamroller architecture (Kaveri)
The third generation of the platform, codenamed Kaveri, is expected to be released in the first quarter of 2014. It is reported to contain Steamroller CPU cores, a Graphics Core Next GPU, an on-chip ARM Cortex-A5 MPCore, and it will use a new socket, FM2+.
No you're not.
The entire chip is an APU, so no. No because FM2+ is a different socket than AM3+. No it wouldn't because it's a FX-4*** with no L3, they have these already, they're called Athlons and they run on the FM socket.
Where are you getting the idea that AM3+ is dead?
OK, I wasn't aware that there were apu gimped chips being sold for the FM socket. (I would say for certain then they could be outfitted for AM3+ as well.)
AFA the entire chip being APU, that confused me. the steamroller cores are "Kaveri" and the apu is separate integrated but on the same die yet not sharing of resources (IE shared alu...) so therefore can be separated.. correct? I guess there still using a ring bus maybe?
I have been reading that Steamroller (Kaveri) core will only be released on FM2+. Is there a code name for ones without APU I am unaware of as I thought this was the only Die's AMD were rolling out.
I hope I'm making sense here.
Oh, and I'm getting the Idea that AM3+ is dead because it cannot handle a APU interface and if AMd is only pushing out steamroller in APU form then well thats pretty simple math.
That is all correct (the Wiki page), but pertains only to Kaveri, hence the (Kaveri).
While we usually call it Bulldozer, Piledriver, and Steamroller, those are architecture
names, not codenames. For example my Piledriver chip is codenamed Vishera, but the APU based on Piledriver is called Trinity or Richland. I do not know the proper codename for the next FX Steamroller-based chip. Kaveri is simply the APU that is based on the Steamroller cores, not Steamroller itself.
An "APU" is a CPU/GPU combo. The GPU half of an APU is just that; a GPU. The entire unit is what we call an APU. Llano as an APU is an Athlon II plus a VLIW(4 or 5) GPU bolted on. Trinity/Richland as an APU is a 2-module Piledriver with a VLIW4 GPU bolted on. Kaveri is the next generation, and will have 2 Steamroller based modules, a GCN-based GPU, and will utilize HSA.
As for them being fitted for AM3+, not really. See, the FM socket has no northbridge, it's been integrated into the CPU Die:
This is for several reasons, the main of which is that the GPU half connects via a dedicated and on-die PCI-e connector, and they needed to reduce latency as much as possible. As a result, everything on the motherboard connects to the Northbridge on the CPU directly. (Southbridge, extra chips, etc).
The AM3+ chipset however keeps the Northbridge on the motherboard, and connects the CPU/NB controller and the NorthBridge using HyperTransport. everything else on the motherboard but RAM goes through the Northbridge itself, then over the HT Link to the CPU/NB. RAM goes to the CPU/NB itself.
These two design styles are completely incompatible, at least until the FX chips also integrate the Northbridge. But by the time that happens, we may as well use high-end FM-series boards with more PCI-e lanes routed through the motherboard itself, rather than make another chipset. The only problem with that is that keeping the NorthBridge on the motherboard and connecting the CPU with only HT and RAM is what gives AMD it's legendary backwards compatibility. The FM boards have to follow Intel's upgrade route.
Anyway, of course you won't see any information on an FX chip on that wiki page, it is about APUs only. No information is known about the next FX-series chip aside from the Steamroller (architecture) improvements, like the stronger decode unit, and the likely naming scheme. This can be said of just about every AMD CPU recently.
EDIT: I get the feeling you probably know a lot of this, but I'm solving this one shotgun style; Hit everything and hope one of the things I hit is the target.Edited by KyadCK - 9/3/13 at 8:56pm