Monday, May 04, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Intel Accelerates Data Centers With New SSD DC S3510 Series
Some Android Smartphone Apps May Track You
GE Collaborates With Apple , Qualcomm, On Intelligent Lighting
Microsoft Announces New Solutions For IT Professionals
Facebook Launches Open Internet.org Platform
HP Revamps Its Desktop PC Offerings, Releases New 4K Display
Samsung Galaxy S6 Smartphones Have Memory Leak Problems
Cry Engine, Final Fantasy Direct X 12 Demos Impressed BUILD
Active Discussions
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
cdrw trouble
burning
 Home > News > PC Parts > Jedec R...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, September 25, 2012
Jedec Releases Next-gen DDR4 DRAM Specifications


JEDEC Solid State Technology Association today announced the initial publication of the widely-anticipated Synchronous DDR4 (Double Data Rate 4) standard.

JEDEC DDR4 (JESD79-4) has been defined to provide higher performance, with improved reliability and reduced power. The new DDR4 standard is available for free download from the JEDEC website at http://www.jedec.org/standards-documents/results/jesd79-4%20ddr4. The spec defines an interface delivering up to 3.2 GigaTransfers/second and is Jedec?s first to include features supporting 3-D stacking.

DDR4 offers a range of features designed to enable high speed operation and applicability in a variety of applications including servers, laptops, desktop PCs and consumer products.

The per-pin data rate for DDR4 is specified as 1.6 giga transfers per second to an initial maximum objective of 3.2 giga transfers per second. With DDR3 exceeding its original targeted performance of 1.6 GT/s, it is likely that higher performance speed grades will be added in a future DDR4 update. Other DDR4 attributes intertwined with the planned speed grades, enabling device functionality as well as application adoption, include: a pseudo open drain interface on the DQ bus, a geardown mode for 2,667 MT/s per DQ and beyond, bank group architecture, internally generated VrefDQ and improved training modes.

The DDR4 architecture is an 8n prefetch with two or four selectable bank groups. This design will permit the DDR4 memory devices to have separate activation, read, write or refresh operations underway in each unique bank group. This concept will also improve overall memory efficiency and bandwidth, especially when small memory granularities are used. More information about additional features may be found on the JEDEC website.

In addition, DDR4 has been designed in such a way that stacked memory devices may prove to be a key factor during the lifetime of the technology, with stacks of up to 8 memory devices presenting only a single signal load.


Previous
Next
LaCie Introduces Rugged USB 3.0 Thunderbolt Series        All News        MySpace To Be Redesigned Again
LaCie Introduces Rugged USB 3.0 Thunderbolt Series     PC Parts News      Google Nexus 7 Tablet Relased In Japan

Get RSS feed Easy Print E-Mail this Message

Related News
GeIL's Latest DDR4 SUPER LUCE Memory 'Breathes'
New DDR4 128GB Memory Kit Is Clocked At 2800MHz
Corsair Releases Dominator Platinum DDR4 3400MHz Memory
Kingston DDR4 SO-DIMMsValidated For Intel Xeon Processor D-1500 Product Family
HyperX Releases FURY And High-capacity Predator DDR4 Kits
JEDEC Releases e.MMC Standard Update v5.1
LG G Flex2 Smartphone Uses SK hynix LPDDR4 Memory
Apacer Launches BLADE DDR4 Overclocking Modules
HyperX Sets DDR4 Overclocking Record
Crucial Ballistix Elite DDR4 Memory Now Available
Crucial Unveils New SSDs And DDR4 Memory Modules At CES
Samsung Starts Mass Production of First 8 Gigabit LPDDR4 Mobile DRAM

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .