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More "Penryn" details emerge

Despite the plethora of attention Penryn received over the last few weeks, Intel's newest roadmaps put the processor launch for Q1'08.  This indicates the launch has not necessarily accelerated even though the initial tape-out proved extremely successful.

On the other hand, Intel's 2008 roadmap shows every segment simultaneously deploying 45nm products.  Like AMD's recent 65nm Brisbane launch, Intel guidance notes the processors will start shipping Q4'07 but the actual launch will come as a coordinated 2008 event.

The first Intel 45nm treatments will come from the quad-core Yorkfield and dual-core Wolfdale desktop processors.  Wolfdale has two physical cores on a single die and up to 6MB of L2 cache.  Yorkfield is then two Wolfdale dice on a single package. Also worth noting: Wolfdale ships with a 1333MHz front-side bus and Yorkfield ships with a 1066MHz front-side bus.  Chipset support will largely come from Bearlake-family that was previously disclosed on DailyTech.

Perhaps the most interesting thing about these two processors is the return of Hyper-Threading.  This, however, does not mean that Yorkfield will appear as eight logical cores, nor does it mean Wolfdale will appear as four logical cores. Intel's internal guidance on the subject specifically claims the processor will ship with Hyper-Threading, but will only utilize 4 threads.  On every Intel roadmap in the past, Hyper-Threading doubles the amount of listed threads in the guidance documentation.  Clearly, there is more of a mystery here still.  (Update: Please read the retraction below.)

"The official company policy is that our engineers have left the door open for Hyper-Threading, but we cannot confirm or deny any future plans for the technology," adds Intel Public Relations Manager Dan Snyder.

All Penryn cores also include Intel TXT, previously known as Intel LaGrande Technology.  TXT stands for Trusted Execution Technology and refers to the collection of devices.  The Trusted Platform Module, or TPM, is one component. DMA page protection is another. 

Alas, even if 2008 seems like a long time away for the 45nm platform, it's important to note that all Intel platforms will have 45nm SKUs in Q1'08.  Penryn, the family name for Intel's first generation 45nm consumer CPUs, also refers specifically to the 45nm dual-core mobile CPU.  Intel's current roadmap claims this processor will lead the Q1'08 mobile push with several low voltage models coming one quarter later.

For servers, Wolfdale will make an appearance as a dual and single socket Xeon.  It's been long-standing Intel policy to separate desktop, mobile and server chipsets into different products; Conroe was the Core 2 desktop CPU and Woodcrest, though physically nearly identical, was the Xeon counterpart.  Wolfdale as a server and a desktop CPU indicates the chips are electrically identical -- though each will likely receive different packaging for the different sockets. 

Yorkfield will not receive the same codenaming treatment as Wolfdale on the server. Instead, Harpertown will be the quad-core Xeon for two socket servers.  Yorkfield will still be the company’s single-socket quad-core Xeon offering.

Update 01/31/2007:  Channel sources have reached out to DailyTech to emphasize that the addition of Hyper-Threading to Penryn-family processors in 2008 is incorrect and the result of dated channel data.  My feelings and thoughts about the retraction can be read on my blog.


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By Phynaz on 2/1/2007 1:13:30 PM , Rating: 2
Yeah, prove a negative, that will work.

Please point me to this scientific evidence you speak about.

Even though I'm not the one making the statements (you are), I'll give you my evidence.

Using Intel analysis tools, running business applications, I see FSB utilization in the 15% percent area on a dual core HP system. Running the same on a quad bumps the utilization to 18%-20%. Business applications run out of cpu long before then run out of FSB bandwidth.



By Viditor on 2/1/2007 1:38:14 PM , Rating: 2
quote:
Yeah, prove a negative, that will work

Sigh...it's not proving a negative, it's demonstrating that data throughput on a FSB modeled system is equivalent to an HT modeled system.

I remind you that you are the one who said:

"I'ts been shown again and again that there is no FSB bottleneck"

All I'm asking for is for you to show that...seems reasonable to me.


By saratoga on 2/2/2007 6:24:55 PM , Rating: 2
quote:
Please point me to this scientific evidence you speak about.


What kind of logic is this? You said there was evidence, so you provide it. Don't say it exists and then expect other people to find it for you.

quote:
Even though I'm not the one making the statements (you are)


You mean "making claims". This whole post of yours is a statement.

Anyway, remember when you posted this:

"I'ts been shown again and again that there is no FSB bottleneck. "

So you did make a claim. Now back it up or retract it.

quote:
Using Intel analysis tools, running business applications, I see FSB utilization in the 15% percent area on a dual core HP system. Running the same on a quad bumps the utilization to 18%-20%. Business applications run out of cpu long before then run out of FSB bandwidth.


All that proves is that your specific business app isn't constrained. No one even doubted that. Rather, your claim that the Core 2 was not limited on all workloads is in doubt. Unless you've some reason to think its relevant to the rest of the world, theres no sense in even mentioning it.


"A politician stumbles over himself... Then they pick it out. They edit it. He runs the clip, and then he makes a funny face, and the whole audience has a Pavlovian response." -- Joe Scarborough on John Stewart over Jim Cramer

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