WOW, shame they are on full sized PCB's, some timing missing too.

Timing missing?

Actually for desktop use DDR4 doesn't really offer anything tangible over 1.2v LV DDR3 as extensive testing with real applications shows DDR3 @ 1600 MHz. is not a system bottleneck. DDR4 is primarily for server use, regardless of what marketeers tell naïve consumers. 2133 MHz. for APU power desktops is about the performance limit so paying more for faster frequency or lower latency is just throwing money away.

Latency has even less impact on performance than frequency increases once you get above 1600 MHz. on a discrete CPU powered laptop. In addition many people don't understand that the real latency time tends to stay about the same regardless of frequency but the number of clock cycles increases because the actual cycle time decreases as the frequency increases.

Useful reading:

en.wikipedia.org/wiki/DDR3_SDRAM

Actually I have heard that there would be a few Haswell-E / EP based server components (CPU / motherboards) that use DDR3. Although I have also heard that it would be more expensive so there would be no monetary benefit in the way of savings going with the DDR3 compliant hardware versions.

Overall it doesn't really matter though,...

If you are buying a typical new Haswell-E / EP based Xeon server or workstation you have little to no choice but to go with DDR4,.....for the most part. Also older DDR3 based platforms can't use DDR4. So the merits of which don't really need to be agonized over. Anyone buying such a new DDR4 platform would likely have no real expectations based on the move to DDR4 with specificity or they don't fully understand what they are buying.

OctaveanAnyone buying such a new DDR4 platform would likely have no real expectations based on the move to DDR4 with specificity or they don't fully understand what they are buying.

Well, yeah, but the name has a 4 in it instead of a 3, so, you know, it MUST be better. :p

Some of AMD's integrated GPU offerings benefit from higher memory bandwidth. I'd be curious to know if they take advantage of the extra speed, although it may be a while before AMD implements it.

To be clear... There is no choice. X99 is ddr4. I'd be floored to see a ddr3 variant come to market. I'd also be surprised to see it in servers too...

Hmm..STT DDR4..I like!

Look like micron chips.

EarthDogTo be clear... There is no choice. X99 is ddr4. I'd be floored to see a ddr3 variant come to market. I'd also be surprised to see it in servers too...

Indeed, all I was saying is that I "heard" that there would be a DDR3 option but this was some time ago and as of yet I have seen nothing to support the assertion in the market with respect to actual product.

Personally I don't really care since I have no vested interest in it either way. However, this is a link to the source I was referring to.

www.anandtech.com/show/8536/intels-haswellep-xeons-with-ddr3-and-ddr4-on-the-horizon

Intel’s Haswell-EP Xeons with DDR3 and DDR4 on the Horizon?

A quick email to our contacts at ASRock provided the solution: Intel is going to launch several SKUs with a dual DDR3/DDR4 controller. These processors are available in eight, ten and twelve core flavors, ranging from 85W to 120W:

CPU-World suggested that these processors have dual memory controllers, and we recieved confirmation that this is true. This could suggest that all Xeons have dual memory controllers but with DDR3 disabled

Additional (9/25): We have been asked to make clear that these CPUs will not be on general sale for end-users. Only those companies with large minimum-order-quantities will be able to obtain the CPUs, and as a result these motherboards might find their way into complete servers only, rather than be up for sale individually. These are off-roadmap processors, not intended for general release.

Again, I am not interested in any of this for my use case so I don't really care. I don't look for higher performance from DDR4 with specificity and I don't look to DDR3 for savings on an LGA2011-3 platform. So outside of the scope of those two specific cases,...Pffft,....

natr0nLook like micron chips.

exactly what I spotted too.

Those R micron chips..i am disappoint :cry: