Max memory per CPU/Core?

[idata]

http://ark.intel.com/products/63697/Intel-Core-i7-3930K-Processor-(12M-Cache-3_20 http://ark.intel.com/products/63697/Intel-Core-i7-3930K-Processor-(12M-Cache-3_20

Max Memory Size (dependent on memory type)32 GB

Many motherboards support 64GB memory, but I can't find a FCLGA2011 that supports more than 32GB.

Is that memory limit per core? 6*32=192GB per CPU?

The motherboard manufacturers mention 64+ GB, and I assume they actually tested that

So I wonder if perhaps they have tested with CPUs that are not yet released to the public?

[Adolfo_S_Intel2]

Currently Intel processors supports up to 32 GB RAM per processor.

So if you install 64 GB RAM on a motherboard, the processor will see only the first 32 GB RAM.

[idata]

Speedy wrote:

Is that memory limit per core?

No its for the whole CPU.

[idata]

I created a new account to reply :-)

Somehow, even after several passwords resets, I can't log on under my previous username Speedy.

I've had a chat with Intel support. The summary is. More than 32GB is supported but not processed at the same time.

Intel: Hello. Thank you for using the Intel Customer Chat Support service. We are glad to be of service. How may I help you?: http://ark.intel.com/products/63697/Intel-Core-i7-3930K-Processor-(12M-Cache-3_20 http://ark.intel.com/products/63697/Intel-Core-i7-3930K-Processor-(12M-Cache-3_20: Is that 32GB per core or per CPU: I'm confused because Intel sells motherboards that support 64GB memory for this CPU but the CPU specs state: Max Memory Size (dependent on memory type) 32 GBIntel: Speedy, it is 32 GB per processor: Ok, may I ask why Intel sell motherboards that support 64 GB? Others like Asus sell 64GB motherboards too, which they claim are tested. But how if the CPU can't handle more than 32GB?: For a yet unreleased CPU?Intel: Speedy, to keep you informed processor can take only upto 32GB of maximum RAM memory and consider you are using 64 GB of maximum memory installed in your motherboard 64 GB of memory will be split ie first 32 GB will be processed and second 32 GB will be queued.: So the processing task can be not larger than 32GB but remaining 32GB can for example hold data/programs that are not actively worked on by the CPU? But, say, 5 seconds later the CPU is able to process something from the other 32GB.Intel: Yes, Speedy.

[idata]

The reason your confused is only the i7-3960X can support 64GB not i7-3930K.

The CPU is what limits the amount of RAM it supports being that the memory controller is in the CPU.

[idata]

I think you are the one that's confused Peter

http://ark.intel.com/products/63696/Intel-Core-i7-3960X-Processor-Extreme-Edition-(15M-Cache-3_30-GHz) http://ark.intel.com/products/63696/Intel-Core-i7-3960X-Processor-Extreme-Edition-(15M-Cache-3_30-GHz)

It supports only 32GB

[idata]

Speedy_ wrote:

I think you are the one that's confused Peter

http://ark.intel.com/products/63696/Intel-Core-i7-3960X-Processor-Extreme-Edition-(15M-Cache-3_30-GHz) http://ark.intel.com/products/63696/Intel-Core-i7-3960X-Processor-Extreme-Edition-(15M-Cache-3_30-GHz)

It supports only 32GB

But it took you long enough didn't it maybe because the i7-3960X was not listed in the ark when I posted! and all I had to go was reviews like this:

http://review.techworld.com/personal-tech/3322604/intel-core-i7-3960x-review/ http://review.techworld.com/personal-tech/3322604/intel-core-i7-3960x-review/

"Intel parked its test Core i7-3960X CPU on a DX79SI "Siler" motherboard. The Siler is well equipped, to say the least. Eight DIMM slots offer a potential 64GB of RAM"

http://techland.time.com/2011/11/14/intel-core-i7-3960x-review-roundup-its-full-of-expensive/?iid=tl-article-latest http://techland.time.com/2011/11/14/intel-core-i7-3960x-review-roundup-its-full-of-expensive/?iid=tl-article-latest

"If you're jonesing to build a high-end workstation, are using software that can reasonably demand up to 64GB of RAM, or are planning to build your own 3 to 4-way multi-GPU system, than the 3960X is a great chip on a solid platform."

[idata]

Speedy2 wrote:

Intel: Speedy, to keep you informed processor can take only upto 32GB of maximum RAM memory and consider you are using 64 GB of maximum memory installed in your motherboard 64 GB of memory will be split ie first 32 GB will be processed and second 32 GB will be queued.

: So the processing task can be not larger than 32GB but remaining 32GB can for example hold data/programs that are not actively worked on by the CPU? But, say, 5 seconds later the CPU is able to process something from the other 32GB.Intel: Yes, Speedy.

Say that a computer user is running a scientific program which has data needed by different cores at the same time spread throughtout the memory. Then having 64gb of RAM would probably slow them down as compared to 32gb, right?

[idata]

That's what I fear. Sounds a bit like the extended memory on Windows 3.11 systems.

Your exmple/question is likely more realistic than my question to the support desk.

There is no guarantee all data is exactly in the same 32GB the CPU is using that moment.

That doesn't just include program data but also all sorts of sytem buffers like write cache.

I trust Intel enough to assume they don't sell 64GB motherboards or even pre-build PCs that can only use half of the installed memory.

But I also trust that the 32GB mentioned on their site is relevant somehow.

i3 uses only (blocks of) 16GB.

http://ark.intel.com/products/52220/Intel-Core-i3-2310M-Processor-(3M-Cache-2_10-GHz http://ark.intel.com/products/52220/Intel-Core-i3-2310M-Processor-(3M-Cache-2_10-GHz)

I looked for reviews but unfortunately they only benchmark common tasks. I've never read a review that concentrated on what we discuss in this thread.