Wednesday, November 26, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Twitter Tracks Apps Installed On Your Device, Introduces Offers
Ubisoft Apologizes For Assassin's Creed Unity Issues, Offers Free Game
Europe Wants Right-to-be Forgotten to Go Globally
Far Cry 4 Game Available For Free With Purchase of 840 EVO SSD
UK Music Industry Seeks For New Tax on CD Copying
Samsung's DeepSort Sorting Engine Prevails In Benchmarks
Sony Plans E-Paper Watch: report
HP Reports Fiscal 2014 Full-Year and Fourth Quarter Results
Active Discussions
Hi All!
cdrw trouble
CDR for car Sat Nav
DVD/DL for Optiarc 7191S at 8X
Copied dvd's say blank in computer only
Made video, won't play back easily
New Features In Firefox 33
updated tests for dvd and cd burners
 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
Fujitsu Says New DDR4 DIMM Socket Reduces Intermittent Signal Issues
Samsung Mass Produces 8-Gigabit DDR4 Based on 20 Nanometer Process Technology
Crucial Ballistix Sport DDR4 Desktop Memory And DDR4 Server Memory Released
Wide IO 2 Mobile DRAM Standard Released
Samsung Starts Mass Production Of First 3D TSV DDR4 Modules
JEDEC Releases LPDDR4 Standard
G.Skill Ripjaws DDR4 Will Be Available Up to DDR4-3200
Mobile Device Growth Drives Memory and Storage Industry Development
Crucial Starts Sampling DDR4 Server Memory
Virtium Starts Offering DDR4 VLP RDIMM Samples
Samsung Accelerates DDR4 Production
SK Hynix Develops First 128GB Module Built On 8Gb DDR4

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .