At this point, no info is made public. But I would assume that the i7s will be limited to two DIMMs per channel. Although I wonder if the workstation motherboards, with the consumer angle that support Xeons, will stick to two per channel.
I've found no mention of how channels are supposed to be handled in JEDEC's guidelines on DDR4. It appears that that manufacturers are free to do what they want. Signal noise does worsen as you add DIMMs to the channel, and it's likely that as speeds increase, they'll have to stick to 1 DPC (DIMMs Per Channel).
However, even if DDR4 is Point-to-Point, the DPC limit can be worked around with the use of a digital switch.
And yes, AnandTech has reported in the past that DDR4 would be limited to 1 DPC. It's plastered almost practically everywhere, including presentations from universities, but such information is missing from the only places that matter, like Micron, JEDEC, Samsung, Hynix, et al.
ddr4 is not going to be limited to only 4 slots there will be 8 slots just like on all other x79 chipsets. And 16GB standard non ecc dimms should become available then too. Allowing up the 128GB of ram on consumer machines.
OoOOOO 128GB of ram. Just imagine the huge 100GB ram discs you could make and do all your work directly off the ram stick and only use the HDD to periodcly save ur work. SUCH SPEED 3000 MHZ quad channel ddr4 with all your accesses coming from that instead of storage. Sick speed
I highly suspect in the consumer based Intel processor product line, there will be a continued limitation on physical addressing. For example, current LGA 1150 have addressing limitations of 32GB, conversely - the current LGA2011 have addressing limitations imposed by Intel at 64GB. IF you desire something larger - you enter the Xeon domain. Calling up Intel.com Web site and punching in a processor i3, i5 or i7 will illustrate "Max Memory Size (dependent on memory type)." With the "?" revealed in your mouse pointer - click to note their definition of what that statement means. Now, call up a corresponding Xeon processor - see what it's "limitations" are on addressable memory size. Welcome to Intel Marketing limitations in the designs in full swing! It's all based on restrictions based on how much you want to pay.
Jeez, not even sure where to start. The density limitations you're referring to are a result of memory standards and RAM specifications, they aren't artificial "addressable memory" limitations imposed by Intel. The only way to achieve the densities you're talking about is by using FBDIMMs, which are different from your normal DDR3 and aren't supported on consumer platforms for various reasons including cost, demand, and performance. Basically it doesn't make a whole lot of sense to bring consumer support when the primary benefits are far more pronounced in server/enterprise environments and the primary weaknesses are more pronounced in consumer environments.
I'm excited. Finally a worthy upgrade to my 4.4ghz i7-980x hex core. Been on this dame thing for like 4 years over 4 years even. But nothing in the enthusiast section has really has a big enough performance leap to make the upgrade worthy. Can't wait to replace with the i7-5960x Ocat core monster. I'm just worried how tough it's going to be to overclock. I use a 35mm super thick 280mm radiator ek waterblock for chip and mobo chipset and vrms basically full waterblock coverage for allt eh heat generating parts of mobo on a nice fat 140mmx2 radiator with 4 140mm silent noctuas in push pull. Forget the pump type but it was one of the most expensive and fastest pump you could get. Tho thats probably changed in the past 4 years.
I really would like to get 4.5Ghz on all 8 cores with turbo disabled just a stead 4.5ghz on all cores screw power savings by letting it use turbo boost only when needed. I want max clock all the time. Hopefully a custom waterblock with double thick 140x2mm radiator and 4 140mm fans will allow me to get 4.5ghz (a 1.5ghz OC) to the 8 core. I dont want to sacrifice too much single threaded performance for 8 cores. If the 8 core is too thermally or electrically restricted I will get the higher end i7-5930k 6 core and oc that to 4.5 or more. But I have fair my custom waterloop can do it. Ill even upgrade to a 140mmx3 420mm double thick rad with 6 140mm fans in push/pull. Even if I need to splurge on a solid copper radiator and water block with 0 aluminum for max thermal transfer.
My x58 i7-980x which can hit 4.5ghz means i expect the new 8 core x99 haswell-e to hit 4.5ghz too.
Soon my rly high end gaming workstation x58 will be up for sale and don't let it's age fool you. It can keep up with the latest lga 1150 z97 haswell mainstreams no problem. If you want first dibs at it coming this september hit me up at daovermindbrood ATTTT hotmail DOTTT com. Tower never moved a muscle in years and lived in a nice cool 67 degree F house and never ran hot. It's got a lot of life in it
I'm gonna look for a nice ASUS ROG top end x99 board. The 40 pci-e 3.0 lanes directly from CPU are a godsend 2 8x pci's for GPU's 2x 3x 4x lanes for 2 ultra m2 slots at x4 speed and 1 sata express at x4 speed and that still leaves enough for another 8x slot for triple sli and 4x more lanes for ethernet and more peripherals like usb or thunderbolt. That plus the ddr4 is going to make this 8 core x99 machine a video editors dream machine with a fat 64GB of speedy 3000mhz ddr4 quad channel ram. real time 4k video editing here i came!.
But seriously, if what you're doing is video editing, you might want to consider a P9X99 (WS ASUS). Xeons give much better performance for video edits, and ECC is a lifesaver.
But yeah. Chalk me up for a Rampage V Gene (or Extreme) + 5960x, and a nice kit of 2x4GB Samsung ICs. All I'd need to wait for is either phase changers or pots and I'm good to go.
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Morawka - Wednesday, June 4, 2014 - link
Socket is massivedylan522p - Thursday, June 5, 2014 - link
Sadly the die will only be massive for exons. Extreme editions dies will remain fairly small.dragonsqrrl - Thursday, June 5, 2014 - link
3 DIMMs per channel?? Will the i7's support that?Ian Cutress - Thursday, June 5, 2014 - link
At this point, no info is made public. But I would assume that the i7s will be limited to two DIMMs per channel. Although I wonder if the workstation motherboards, with the consumer angle that support Xeons, will stick to two per channel.MrSpadge - Thursday, June 5, 2014 - link
Wasn't DDR4 supposed to be liimiited to 1 DIMM per channel? Well, it's obviously not.. but I remember reading this even on AT.Homeles - Thursday, June 5, 2014 - link
I've found no mention of how channels are supposed to be handled in JEDEC's guidelines on DDR4. It appears that that manufacturers are free to do what they want. Signal noise does worsen as you add DIMMs to the channel, and it's likely that as speeds increase, they'll have to stick to 1 DPC (DIMMs Per Channel).However, even if DDR4 is Point-to-Point, the DPC limit can be worked around with the use of a digital switch.
And yes, AnandTech has reported in the past that DDR4 would be limited to 1 DPC. It's plastered almost practically everywhere, including presentations from universities, but such information is missing from the only places that matter, like Micron, JEDEC, Samsung, Hynix, et al.
Laststop311 - Monday, June 9, 2014 - link
ddr4 is not going to be limited to only 4 slots there will be 8 slots just like on all other x79 chipsets. And 16GB standard non ecc dimms should become available then too. Allowing up the 128GB of ram on consumer machines.Laststop311 - Monday, June 9, 2014 - link
OoOOOO 128GB of ram. Just imagine the huge 100GB ram discs you could make and do all your work directly off the ram stick and only use the HDD to periodcly save ur work. SUCH SPEED 3000 MHZ quad channel ddr4 with all your accesses coming from that instead of storage. Sick speedEngA1 - Tuesday, June 24, 2014 - link
Not so fast...I highly suspect in the consumer based Intel processor product line, there will be a continued limitation on physical addressing. For example, current LGA 1150 have addressing limitations of 32GB, conversely - the current LGA2011 have addressing limitations imposed by Intel at 64GB. IF you desire something larger - you enter the Xeon domain. Calling up Intel.com Web site and punching in a processor i3, i5 or i7 will illustrate "Max Memory Size (dependent on memory type)." With the "?" revealed in your mouse pointer - click to note their definition of what that statement means. Now, call up a corresponding Xeon processor - see what it's "limitations" are on addressable memory size. Welcome to Intel Marketing limitations in the designs in full swing! It's all based on restrictions based on how much you want to pay.
dragonsqrrl - Monday, July 21, 2014 - link
Sorry, but that's not the way it works, at all...Jeez, not even sure where to start. The density limitations you're referring to are a result of memory standards and RAM specifications, they aren't artificial "addressable memory" limitations imposed by Intel. The only way to achieve the densities you're talking about is by using FBDIMMs, which are different from your normal DDR3 and aren't supported on consumer platforms for various reasons including cost, demand, and performance. Basically it doesn't make a whole lot of sense to bring consumer support when the primary benefits are far more pronounced in server/enterprise environments and the primary weaknesses are more pronounced in consumer environments.
kwrzesien - Thursday, June 5, 2014 - link
Oh holy molex!Can't we come up with a better way of getting extra power to the motherboard? PCI-E 6-pin maybe?
DanNeely - Thursday, June 5, 2014 - link
Or since we're shading towards workstation level boards anyway, just add a second 8 pin 12v header in the PCIe area.Luscious - Thursday, June 5, 2014 - link
Anybody else notice the offset slot spacing on the RAM and PCI? Looks like they're making 4 GPU setups impossible.Laststop311 - Monday, June 9, 2014 - link
I'm excited. Finally a worthy upgrade to my 4.4ghz i7-980x hex core. Been on this dame thing for like 4 years over 4 years even. But nothing in the enthusiast section has really has a big enough performance leap to make the upgrade worthy. Can't wait to replace with the i7-5960x Ocat core monster. I'm just worried how tough it's going to be to overclock. I use a 35mm super thick 280mm radiator ek waterblock for chip and mobo chipset and vrms basically full waterblock coverage for allt eh heat generating parts of mobo on a nice fat 140mmx2 radiator with 4 140mm silent noctuas in push pull. Forget the pump type but it was one of the most expensive and fastest pump you could get. Tho thats probably changed in the past 4 years.I really would like to get 4.5Ghz on all 8 cores with turbo disabled just a stead 4.5ghz on all cores screw power savings by letting it use turbo boost only when needed. I want max clock all the time. Hopefully a custom waterblock with double thick 140x2mm radiator and 4 140mm fans will allow me to get 4.5ghz (a 1.5ghz OC) to the 8 core. I dont want to sacrifice too much single threaded performance for 8 cores. If the 8 core is too thermally or electrically restricted I will get the higher end i7-5930k 6 core and oc that to 4.5 or more. But I have fair my custom waterloop can do it. Ill even upgrade to a 140mmx3 420mm double thick rad with 6 140mm fans in push/pull. Even if I need to splurge on a solid copper radiator and water block with 0 aluminum for max thermal transfer.
My x58 i7-980x which can hit 4.5ghz means i expect the new 8 core x99 haswell-e to hit 4.5ghz too.
Soon my rly high end gaming workstation x58 will be up for sale and don't let it's age fool you. It can keep up with the latest lga 1150 z97 haswell mainstreams no problem. If you want first dibs at it coming this september hit me up at daovermindbrood ATTTT hotmail DOTTT com. Tower never moved a muscle in years and lived in a nice cool 67 degree F house and never ran hot. It's got a lot of life in it
Laststop311 - Monday, June 9, 2014 - link
I'm gonna look for a nice ASUS ROG top end x99 board. The 40 pci-e 3.0 lanes directly from CPU are a godsend 2 8x pci's for GPU's 2x 3x 4x lanes for 2 ultra m2 slots at x4 speed and 1 sata express at x4 speed and that still leaves enough for another 8x slot for triple sli and 4x more lanes for ethernet and more peripherals like usb or thunderbolt. That plus the ddr4 is going to make this 8 core x99 machine a video editors dream machine with a fat 64GB of speedy 3000mhz ddr4 quad channel ram. real time 4k video editing here i came!.Antronman - Monday, June 9, 2014 - link
Yep. Make sure it's ASUS.But seriously, if what you're doing is video editing, you might want to consider a P9X99 (WS ASUS). Xeons give much better performance for video edits, and ECC is a lifesaver.
But yeah. Chalk me up for a Rampage V Gene (or Extreme) + 5960x, and a nice kit of 2x4GB Samsung ICs. All I'd need to wait for is either phase changers or pots and I'm good to go.