AMD Carrizo APU Details Leaked

[AtenRa]

So if they are changing from PCIe 2 to 3, I'm assuming this breaks compatibility with current boards?

Kaveri already has PCI-e Gen 3.0 for the Discrete GPU (16 lanes). They will also upgrade the general purpose lanes to PCI-e Gen 3.0 standard.

 

[AtenRa]

Why don't they use 4 Sata ports in the integrated FCH? Then that would be usable for most motherboards and make them cheaper. More advanced MBs could then add additional controllers. I really don't get it. How needs 8 USB ports? 4 Sata and 4 USB 2.0 would IMHO be much more sane.

The vast majority of Laptops will not need more than 2x Sata ports. Same is also true for Desktop OEM systems. Next generation could have 4x SATA ports.

 

[eternalone]

no more AM3+ cpu's ???????????

 

[SPBHM]

no more AM3+ cpu's ???????????

at this point I think a 3 module FM2+ CPU would make more sense than reviving AM3+.

 

[el etro]

Do you have the URL for that AT article handy?

Its on image, click in the image.

 

[norseamd]

so does carrizo bring anything besides stronger cpu and gpu performance along with ddr4 and full pcie3?

EDIT: more instructions i know, but anything like trueaudio or unique processing elements?

 

[mikk]

Interesting that AMD will provide DDR4 support before Intel on mainstream desktop PCs, assuming AMD Carrizo is released before Intel Skylake.

From what we know only the server product comes with DDR4 whilst the desktop derivat remains on a DDR3 platform.

 

[Insert_Nickname]

at this point I think a 3 module FM2+ CPU would make more sense than reviving AM3+.

Wasn't AMD working on some huge 8 module/16 thread monster chip? I wonder how hard it would be to adapt it to FM2+...?

 

[NTMBK]

Wasn't AMD working on some huge 8 module/16 thread monster chip? I wonder how hard it would be to adapt it to FM2+...?

No, they weren't. They were working on Warsaw, which is two 4-module chips in one package, and is just a respin of the existing Piledriver CPUs.

 

[Insert_Nickname]

No, they weren't. They were working on Warsaw, which is two 4-module chips in one package, and is just a respin of the existing Piledriver CPUs.

That's not what I heard. It specifically mentioned on-die northbridge/PCIe, and a launch target of 2015/16, so it can't be Warsaw. But perhaps it was just hearsay/the usual rumour mill...

If only I could find the link... that should teach me to index my bookmarks...

 

[Vesku]

Why don't they use 4 Sata ports in the integrated FCH? Then that would be usable for most motherboards and make them cheaper. More advanced MBs could then add additional controllers. I really don't get it. How needs 8 USB ports? 4 Sata and 4 USB 2.0 would IMHO be much more sane.

Focus is going towards mobile and small form factor, the many USB ports are mainly because it's relatively easy to implement and the small form factors often include a lot of USB ports.

 

[ShintaiDK]

USB also "cheats" abit. I got 3 actual USB hosts and 14 ports.

 

[ShintaiDK]

no more AM3+ cpu's ???????????

AM3+ is a goner. Future is FMx. Currently FM2+.

AM3+ is also an ancient oudated platform. Even to somehow renew it you would still have to start all over and it wouldnt be compatible in any way.

 

[NTMBK]

That's not what I heard. It specifically mentioned on-die northbridge/PCIe, and a launch target of 2015/16, so it can't be Warsaw. But perhaps it was just hearsay/the usual rumour mill...

If only I could find the link... that should teach me to index my bookmarks...

Hmm, interesting, I hadn't heard anything like that. But I doubt that will happen- AMD can't compete with Intel on performance/W at all right now, which means that they are pretty much dead in the big core server market. Unless AMD have a revolutionary new architecture or alien technology fab process in the pipe, that's not going to change.

 

[Insert_Nickname]

Hmm, interesting, I hadn't heard anything like that. But I doubt that will happen- AMD can't compete with Intel on performance/W at all right now, which means that they are pretty much dead in the big core server market. Unless AMD have a revolutionary new architecture or alien technology fab process in the pipe, that's not going to change.

There, found it...

http://www.xbitlabs.com/news/cpu/di...th_Chip_with_Sixteen_Cores_on_Single_Die.html

Looks pretty interesting. I wonder what the TDP will be on this thing...

 

[ShintaiDK]

If you read the document, its compute units. GPU?

Also the info from these type of documents doesnt always end in a product. Kaveri is the latest example of that.

 

[SlowSpyder]

Too little too late. Broadwell "K" comes this year, and next year Skylake will finish off what's left of AMD's "big core".

Cherry Trail/Broxton will also prove a veritable nightmare for the Beema/Mullins successors ;-)

I've seen posts like this since at least the C2D days...

 

[NTMBK]

If you read the document, its compute units. GPU?

AMD started using the term Compute Unit for CPUs recently, too.

I presume that a Steamroller "module" could also be referred to as a "compute unit".

 

[Fjodor2001]

From what we know only the server product comes with DDR4 whilst the desktop derivat remains on a DDR3 platform.

From where do we know that for sure? The article in the OP does not say DDR4 is server specific. It says:

"The memory controller of Carrizo will feature support for both DDR3 and DDR4 memory technologies. On the DDR3 side of things memory support looks largely unchanged from Kaveri. The only addition seems to be support for Registered DIMMs, which is probably reserved for the server version called Toronto."

So it only indicates that the support for registered DDR3 memory is server (Toronto) specific.

 

[buletaja]

Carrizo will also get some new features such as graphics pre-emption and QoS. These will be very useful for Windows 9 and DirectX 12.

Evolution of this ?
http://msdn.microsoft.com/en-us/library/windows/hardware/jj553428(v=vs.85).aspx


And Microsoft Own patent about QOS
http://www.google.com/patents/US20120159090
"Scalable multimedia computer system architecture with qos guarantees"

What about Mike Mantor said that , scalar unit ---> Scalar Core, any truth ?

 

[mrmt]

I presume that a Steamroller "module" could also be referred to as a "compute unit".

Nope. A steamroller core is a CU, not a module. It seems that they are still committed to put the highest numbers possible in the marketing slides.

 

[NTMBK]

Nope. A steamroller core is a CU, not a module. It seems that they are still committed to put the highest numbers possible in the marketing slides.

Actually, no. Directly from the document in question:

(Recall that a “compute unit” consists of one or two independent integer units and a floating point unit that all share a level 2 cache, as well as instruction fetch, decode, and dispatch units.)

http://support.amd.com/TechDocs/47414_15h_sw_opt_guide.pdf , pg195

That is the description of a module.

And this is a highly technical manual dug up from the depths of their website, not a "marketing slide".

 

[Insert_Nickname]

If you read the document, its compute units. GPU?

Also the info from these type of documents doesnt always end in a product. Kaveri is the latest example of that.

AMD recently started to refer to both "cores/modules" and GPU SMX's as "compute units". That's marketing for you . I don't put too much stock in that article BTW, like you wrote it may never see the light of day.

The concept just looked interesting, that's all. With the potential that it -could- conceivably be adapted for desktop use. I wouldn't hold my breath for it of course...

 

[Arachnotronic]

I've seen posts like this since at least the C2D days...

Yeah, and how well have AMD's "big core" products done since then?

 

[Fjodor2001]

Yeah, and how well have AMD's "big core" products done since then?

Well the statement "next year [insert some random Intel CPU] will finish off what's left of AMD's "big core"." has been said for years, and so far it has not come true.