How much RAM will haswell cpus support max?

[lestat]

Hi,

 

I couldn't find this info anywhere but is it 64GB or 128GB? Is it not known yet?

 

Because there are consumer level i7 mobos with 128GB of RAM support but it seems silly when no consumer cpu supports that amount.

 

 

Thanks.

[DarrenP]

32GB. on the general 1150 platform. 

[nsyedhasan]

32GB of RAM. Unless you can find 16GB DIMs. LGA 2011 support up to 64GB.You will need a dual processor motherboard to get 128GB of RAM right now. You get more on servers. Also why do you want 128GB or 64GB of RAM.

[Tea1337]

1. The i5-4670k supports 32GB
2. the i7-4770k supports 32GB
3. the i7-4930k supports 64GB
4. The i7-4960x supports 64GB

 

The only reason there are mobo's that support that amount of ram is usually for work stations where people use Xeons that support 128gb of ram

[lestat]

Thanks alot guys. I thought haswell was gonna support at least 64GB since some i7s support that amount and haswell is a step up from i7?

 

For example this mobo claims to support 128GB of RAM but it's not a Xeon mobo:

http://www.newegg.com/Product/Product.aspx?Item=N82E16813130681

 

The reason I need 64GB minimum is because I work in vfx and particularly simulations hit the 32GB amount very easily. 64GB would definitely work for me. But in the future when the data sets get larger even after a couple years of upgrading, I wanna be able to upgrade to 128GB without changing anything else. Otherwise I have to pay for a new CPU and mobo just to be able to use more memory.

[nsyedhasan]

Thanks alot guys. I thought haswell was gonna support at least 64GB since some i7s support that amount and haswell is a step up from i7?

 

For example this mobo claims to support 128GB of RAM but it's not a Xeon mobo:

http://www.newegg.com/Product/Product.aspx?Item=N82E16813130681

 

The reason I need 64GB minimum is because I work in vfx and particularly simulations hit the 32GB amount very easily. 64GB would definitely work for me. But in the future when the data sets get larger even after a couple years of upgrading, I wanna be able to upgrade to 128GB without changing anything else. Otherwise I have to pay for a new CPU and mobo just to be able to use more memory.

The X79 chips are not haswell yet, they are Ivy-E. Also it is a theoretical amount of RAM because we don't have 16GB DIMs yet.

[lestat]

Thanks, so X79 is i7, X99 is haswell? Yes I know right now we don't have 16GB single dimm but I saw some announcement 2 months ago that I thought will be available hopefully this year.

 

My confusion was that if you did find 16GB sticks later on and use that mobo, the new haswell cpus won't work with that mobo, right? If so, then why do they release a mobo like that when it's clear no i7 will support 128GB of RAM, even if you have the RAM?

 

Or will new models of i7s still continue to be made after haswell, that could potentially support 128GB?

[-rascal-]

Thanks, so X79 is i7, X99 is haswell? Yes I know right now we don't have 16GB single dimm but I saw some announcement 2 months ago that I thought will be available hopefully this year.

My confusion was that if you did find 16GB sticks later on and use that mobo, the new haswell cpus won't work with that mobo, right? If so, then why do they release a mobo like that when it's clear no i7 will support 128GB of RAM, even if you have the RAM?

Or will new models of i7s still continue to be made after haswell, that could potentially support 128GB?

No, it does not necessarily means it needs to be on the X79 platform to be an i7. For an example, the i7-4770K is on the Z87 (LGA 1150)...same as the i7-4820K.

As of now, The six-core i7-4XXX are based off the Ivy-Bridge-E architecture. An example is the i7-4960X.

[lestat]

Thanks alot but haswell will be on a different platform, right? Did intel announce the set of cpus they will release or is it done as they are manufactured one by one? Also right now 16GB is not here but with DDR4, it seems like 16GBs will be more common, right? If so, I am wondering if the max memory limit will be increased for consumer cpus from 64GB to 128GB.

[-rascal-]

Thanks alot but haswell will be on a different platform, right? Did intel announce the set of cpus they will release or is it done as they are manufactured one by one? Also right now 16GB is not here but with DDR4, it seems like 16GBs will be more common, right? If so, I am wondering if the max memory limit will be increased for consumer cpus from 64GB to 128GB.

Are you referring to "Haswell" or "Haswell-E" ??

"Haswell" IS on a different platform versus "Ivy-Bridge."

Haswell is currently on socket LGA 1150.

Ivy-Bridge is on socket LGA 1155.

Regarding the standard RAM limiting being 64GB or 128GB will be up to Intel and how they see fit, and how technology will evolve and change in the next coming years.

[lestat]

Thanks I think haswell-e? But what's the difference? I checked online but they don't mention the difference. I only saw HEDT which is the high end edition I assume. So is haswell the previous iteration for DDR3 as opposed to DDR4?

[-rascal-]

Thanks I think haswell-e? But what's the difference? I checked online but they don't mention the difference. I only saw HEDT which is the high end edition I assume. So is haswell the previous iteration for DDR3 as opposed to DDR4?

 

There is a big difference between the two.

 

"Haswell" is the code-name for the 4th generation processors that are used on the Z87 LGA 1150 platform (i.e. i5-4670K, i7-4770K, i3-4330). The LGA 1150 variant of "Haswell" uses DDR3 RAM.

 

"Haswell-E" is the upcoming update for the X99 platform. It is the successor of the current "Ivy-Bridge-E" on the X79 platform. "Haswell-E" is the one that is projected to use DDR4 RAM.

The higher-end Quad-Cores / Six-Cores (and potentially Eight-Cores) are in this category (i.e. i7-4960X, i7-4930K, i7-3960X, i7-3930K).

 

"Haswell-E" Ivy-Bridge-E processors support a maximum of 64GB of RAM.

The X79 platform supports for up to EIGHT DIMM slots, and uses Quad-Channel memory technology.

To get the full 64GB, you need eight 8GB RAM modules. (8GB X 8 = 64GB).

[lestat]

Thanks alot. So for X79, even if you get 16GB sticks, you still wouldn't use all 128GB memory, right?

 

You also said haswell-e is also gonna support 64GB max. Does that mean it will also have 8 DIMM slots? But even then, won't we have 16GB sticks coming as DDR4s?

 

This is not DDR4 but like this:

http://www.anandtech.com/show/7742/im-intelligent-memory-to-release-16gb-unregistered-ddr3-modules

[-rascal-]

Thanks alot. So for X79, even if you get 16GB sticks, you still wouldn't use all 128GB memory, right?

 

You also said haswell-e is also gonna support 64GB max. Does that mean it will also have 8 DIMM slots? But even then, won't we have 16GB sticks coming as DDR4s?

 

This is not DDR4 but like this:

http://www.anandtech.com/show/7742/im-intelligent-memory-to-release-16gb-unregistered-ddr3-modules

 

X79 Processors AND Motherboards can only support up to 64GB. There is no 128GB option.

 

Oh shit! sorry, I mean to say "Ivy-Bridge-E" processors support a maximum of 64GB of RAM....not Haswell-E.

(Totally my mistake. I have corrected it in my previous post)

 

Again, it will all depend on how Intel wants to design their products - if they believe 128GB is needed, they will make it possible.

Haswell-E will be using the upcoming X99...which is not out yet. Haswell-E is NOT on the current X79.

 

They have 16GB DDR3 DIMM modules, but they are only for server / super-computer counter-parts. These systems use anywhere from 128GB...all the way to 512GB of RAM.

[The_Strict_Nein]

Xeon Processors (which are X79) support ECC memory which has 16GB DIMMs, therefore 128GB

[Analog]

The fact that X79 motherboards currently do not support more than 64GB doesn't mean that when 16GB memory sticks come out they are not going to. Most decent manufacturers keep up with the BIOS updates and they usually do address these kinds of issues. For example my old Crosshair IV Formula officially supported only 16GB of RAM but actually did work with 32GB after a BIOS update.

[Faa]

The fact that X79 motherboards currently do not support more than 64GB doesn't mean that when 16GB memory sticks come out they are not going to. Most decent manufacturers keep up with the BIOS updates and they usually do address these kinds of issues. For example my old Crosshair IV Formula officially supported only 16GB of RAM but actually did work with 32GB after a BIOS update.

http://ark.intel.com/products/75251/Intel-Xeon-Processor-E7-4890-v2-37_5M-Cache-2_80-GHz

http://ark.intel.com/nl/products/77780/Intel-Core-i7-4930K-Processor-12M-Cache-up-to-3_90-GHz

Memory controller is not made to more than 64GB

[That Norwegian Guy]

The fact that X79 motherboards currently do not support more than 64GB doesn't mean that when 16GB memory sticks come out they are not going to. Most decent manufacturers keep up with the BIOS updates and they usually do address these kinds of issues. For example my old Crosshair IV Formula officially supported only 16GB of RAM but actually did work with 32GB after a BIOS update.

 

Most boards for the i7-9xx series didn't even need a BIOS update

 

Which is why budget server hosts tend to buy up a lot of old Bloomfield stuff for the cheapo 48GB RAM builds.

[LukaP]

Also. Intels memory controller cant address a 16gb stick, since they cut corners designing it. Apparently amd can though.

[lestat]

Almost after a year seems like there is still no 128GB ram for consumer systems? I remember seeing single stick 128GB memory modules a year ago but only vaporware.

 

What do you guys think 2015 will bring to the table in terms of max memory you can use for Intel i7 CPUs? Will we have 128GB memory available through the use of 16GB non-ECC sticks? If so, will Intel still artificially limit consumer CPUs to 64GB of RAM?

 

 

Thanks.

[-iSynthesis]

Hi,

 

I couldn't find this info anywhere but is it 64GB or 128GB? Is it not known yet?

 

Because there are consumer level i7 mobos with 128GB of RAM support but it seems silly when no consumer cpu supports that amount.

 

 

Thanks.

Only X99 supports 128gb of ram, other than that i believe there are some server boards that support more than 32gb but i dont know if they are 1150 and you need a xeon.

[DirkW]

Thanks, so X79 is i7, X99 is haswell?

Just to get out of the way (in case it is not clear yet):

 

There are i7s of several generations and for several different sockets and chipsets.

 

So there is no i7 or Haswell, there are i7s (but also i5s, i3, etc.) from either 1st Gen (don't remember the codename(s) I'm afraid), Sandy Bridge, Ivy Bridge, Haswell (and soon Broadwell, Skylake, and Cannonlake, etc.) generations. Plus the versions for the enthusiast platforms (different sockets, more cores and PCIe lanes mostly).

[lestat]

These guys claim they got 128GB RAM working with an i7:

http://www.pcworld.com/article/2938855/hardcore-hardware-we-stuffed-this-pc-with-128gb-of-cutting-edge-ddr4-ram.html

 

Is this legit?

 

I thought the CPU couldn't use more. Is that a BS limit that's actually not true?

[NumLock21]

32GB max for both consumer and server cpus on the Haswell platform, socket 1150

64GB max for consumer and 768GB for server cpus on the Haswell-E platform, socket 2011-3

64GB max for both consumer and server cpus on the Skylake platform, socket 1151

[Curufinwe_wins]

32GB max for both consumer and server cpus on the Haswell platform, socket 1150

64GB max for consumer and 768GB for server cpus on the Haswell-E platform, socket 2011-3

64GB max for both consumer and server cpus on the Skylake platform, socket 1151

That's official support, but 128GB is easily supported by most upper end haswell-e boards and cpus. Intel doesn't update the ram limits very often (or ever really). Likewise 4x16 works fine on skylake even if it's not officially supported (almost all oems are offering skylake desktops with 64GB ram).