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New retention mechanism

1207 pins
AMD's new LGA-1207 is ready for quad-core Opterons

Although at this time, details are scarce, we are able to reveal some images of AMD's next-generation Opteron socket, called Socket F. AMD's Socket F will be a LGA-type socket with 1207 pins, and is an entirely new design from current Opteron sockets. We've read that the new socket will be used for upcoming dual-core Opterons as well as quad-core Opterons. The new socket comes with an updated retention mechanism.

Intel adopted the LGA socket design with Prescott to reduce cost and also to reduce the defect rate on processors.  After all, would you rather scrap a $600 CPU for a bent pin, or a $100 motherboard for a bent land grid?  A few days ago, we got some pictures of the upcoming Intel 771 LGA socket for Xeon motherboards.


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Great News
By BaronMatrix on 2/23/2006 5:13:35 PM , Rating: 2
I was wondering where 1207 was. Socket F is supposed to support DDR3, isn't it?




RE: Great News
By JackPack on 2/23/2006 5:14:47 PM , Rating: 2
No, 1207 doesn't support DDR3 or FBD as far as I know.


RE: Great News
By BaronMatrix on 2/23/2006 5:26:41 PM , Rating: 2
I heard differently , but can't say. Even with DDR2, they will more than likely take Intel out back and beat the crap out of em again. It would be really cool if they got HT up to 2000/4000 with DDR2-800. The way it looks, they are going to drop the mobile 65nm first and add L3 to the Opteron in 2007. They actually have to for 16 way servers, but it's reasonable that they will want to increase performance before the new architecture and L3 will increase perf.


RE: Great News
By JackPack on 2/23/2006 5:53:20 PM , Rating: 2
DDR3 has such low capacity; 32 devices per channel if I recall correctly. It's not optimal for the server market.


RE: Great News
By BaronMatrix on 2/23/2006 5:29:43 PM , Rating: 2
I actually meant the memory controller, not the socket. I didn't hear about moving the PCIe tunnel, though.


RE: Great News
By cscpianoman on 2/23/2006 5:17:35 PM , Rating: 2
I doubt it. Most memory manufacturers are mostly into DDR2 and only produce DDR3 in minute amounts for the video card industry. Placing those into servers right away would be a very poor move by AMD to their bottom line, especially trying to support two formats at the same time.


RE: Great News
By Furen on 2/23/2006 6:19:26 PM , Rating: 3
DDR3 has nothing to do with GDDR3. GDDR3 is actually more akin to DDR2 with graphics-specific optimizations.


RE: Great News
By cscpianoman on 2/24/2006 9:46:12 AM , Rating: 2
Point taken, but I still hold out on the DDR2 manufacturing. Memory companies won't transition with new expensive equipment until the previous generation has given them all they can.


RE: Great News
By tonjohn on 2/23/2006 8:40:11 PM , Rating: 2
AMD has not made any official statements regarding DDR3 support on any of their nextgen CPUs, however, that does not mean that they don't support it.

I have a strong feeling that these new Opties will have DDR2, FB-DIMM, and DDR3 support (and possibly XDR support).

AMD recently entered into a licensing agreement with Rambus which would allow them to have a some pretty robust memmory controllers.


RE: Great News
By defter on 2/24/2006 1:51:21 AM , Rating: 2
"I have a strong feeling that these new Opties will have DDR2, FB-DIMM, and DDR3 support (and possibly XDR support)."

How they could have DDR3 support, when DDR3 specs aren't finalized yet? Besides, having three different memory controllers on the CPU is just silly.


"AMD recently entered into a licensing agreement with Rambus"

AMD did enter into a licensing agreement with Rambus in 1998. How many RDRAM/XDR supporting chipsets or CPUs AMD has made since then?


RE: Great News
By tonjohn on 2/24/2006 11:32:07 AM , Rating: 3
quote:
How they could have DDR3 support, when DDR3 specs aren't finalized yet?

You make a very valid and understandable point. However, the spec is nearly finalized and it would not be hard for AMD to build in unofficial support for such a thing just like they did with DDR500 support in the Athlon64s and Intel did with HT in the old P4s.
quote:
Besides, having three different memory controllers on the CPU is just silly.

There wouldn't be three different memory controllers, there would be one memory controller that has support for three different standards. Similar to ATi's and nVidia's memory controllers on their respective GPUs.
quote:
AMD did enter into a licensing agreement with Rambus in 1998. How many RDRAM/XDR supporting chipsets or CPUs AMD has made since then?

Here is specifically what I was referring to:
quote:
Advanced Micro Devices and Rambus Tuesday said the former would pay the latter $75 million as a part of a five-year patent license agreement between the microprocessor maker and technology developer. The agreement includes licensing of memory and interface technologies.
http://www.xbitlabs.com/news/cpu/display/200601030...


RE: Great News
By defter on 2/24/2006 5:11:45 PM , Rating: 3
quote:
You make a very valid and understandable point. However, the spec is nearly finalized and it would not be hard for AMD to build in unofficial support for such a thing just like they did with DDR500 support in the Athlon64s and Intel did with HT in the old P4s.


The difference is that support for DDR500 was just a support for different memory dividers. DDR3 chip spec isn't finished and AFAIK spec for DDR3 modules is far from being finished. Thus AMD simply cannot make currently DDR3 controller that is 100% guaranteed to work with DDR3 modules that will be released in 2007/2008.

quote:
Similar to ATi's and nVidia's memory controllers on their respective GPUs.


ATi and nVidia don't have memory controllers that support three completely different standards. Supporting GDDR1/2/3 is quite easy, GDDR2 is backwards compatible and GDDR3 is just a slight modification, all these memory technologies are parallel in nature, have same bus width, etc..

What you are proposing is that AMD will support serial, narrow (16bit?) and fast (clocked at several GHzs) memory technology (FB-DIMM, XDR) and parallel, wide (128bit) and slow (clocked below 1GHz) memory technology (DDR2, DDR3) with the same memory controller. This is just impossible. They would need to implement different memory controllers, reserve different pins to them etc. And besides, why would you use XDR on Socket-F? It definately isn't designed for server use.

quote:
Here is specifically what I was referring to


Here is what I was referring to:
http://www.amd.com/us-en/Corporate/VirtualPressRoo...

"AMD Chooses Direct Rambus Interface Technology for Processor Chipsets

--First Test Chips Are Already Functional at Full Speed--

SUNNYVALE, CA -- October 8, 1998 --AMD announced today it has licensed the Direct Rambus™ high-bandwidth memory interface for use in forthcoming logic chips, and that the technology will be the main memory interface for future personal computer products. Test chips for the company's initial program are functional at full-speed, 800 MHz operation."

How many AMD's RDRAM chipsets made to the shops?


RE: Great News
By themelon on 2/24/2006 4:59:44 AM , Rating: 2
They only support Registered, ECC DDR2 modules. I know this for a fact.


RE: Great News
By Viditor on 2/24/2006 6:57:38 AM , Rating: 2
quote:
AMD recently entered into a licensing agreement with Rambus which would allow them to have a some pretty robust memmory controllers


Rambus has claimed ownership of a portion of FBDIMM IP. While AMD had an agreement with Rambus prior to this, it didn't include the licensing for DDR/DDR2. However, most of the lawyer types have been saying that Rambus' claim on FBD is much stronger, so it's probably a good bet that Socket F will be FBD.


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