Faster Memory for Servers, Workstations Entering Mass Production
October 25, 2011 8:26 AM
comment(s) - last by
Samsung, Hynix, and Micron preparing for the next generation
DDR3 SDRAM is now the standard memory for servers and workstations, but its supremacy was never assured. The introduction of
was slated as a substitute, but its high costs and power consumption heralded its doom. 1333MHz has been the top speed for servers using DDR3 during the last two and a half years, but things are about to change. A number of new product launches from Intel and AMD are leading to some faster memory from Samsung, Hynix, and Micron.
Although DDR3 was first introduced in 2007, it didn't make its way to servers until March 2009. Intel's
servers were the first to make use of DDR3's higher clocks speeds and lower power consumption, while AMD followed with its Socket AM3 quad-core Opterons, code-named "Suzuka."
FX series of CPUs using the Bulldozer core
are the first to officially support DDR3-1866 at stock speeds. Although its performance was not as high as anticipated, there is a lot of interest in using the FX series in the workstation market due to ECC support in its dual channel integrated memory controller. Intel's Xeon processors are dominant in that market, but they are much more expensive.
Samsung is the largest DRAM manufacturer in the world, and is currently mass producing several DIMMs to address this opportunity. The most interesting is an 8GB unbuffered ECC DIMM (M391B1G73BH0-CMA), which uses 4Gb chips running at DDR3-1866 (PC3-14900). A fully populated AM3+ motherboard like the ASUS Crosshair V Formula would be able to address 32GB of this RAM. 4GB (M391B5273DH0-CMA), 2GB (M391B5773DH0-CMA), and 1GB (M391B2873GB0-CMA) capacities will also be available.
Hynix is currently sampling a similar 8GB ECC module (HMT41GU7MFR8C-RD), but 4GB (HMT351U7CFR8C-RD) and 2GB (HMT325U7CFR8C-RD) DIMMs are already in mass production. Micron, the last U.S.-based DRAM manufacturer, has similar products in the works as well. They declined to comment at this time, but they do have 2Gb DDR3-1866 chips in mass production. All three firms are utilizing a CAS latency of 13 at this speed.
AMD's upcoming 16 core Interlagos servers and some of Intel's Sandy Bridge-E server CPUs will feature quad-channel DDR3-1600 (PC3-12800) integrated memory controllers. This is the most lucrative market for Samsung, Hynix, and Micron. All three already have 16GB and smaller capacity ECC Registered DIMMs in mass production at that speed. Hynix is sampling a 32GB DIMM, while Micron has the only DIMMs with a CAS latency of 10.
Lower voltage (1.35v) versions of these DIMMs will be the most in demand due to their
reduced power consumption
. However, the largest servers will use Load Reduced DIMMS (LR-DIMMs). These are the successors to FBDIMMs, but without the problematic serial interface. In addition to the address signals normally buffered by registered DIMMs, LR-DIMMs also buffer the datalines. This allows the number of memory chips that can be used per channel to be greatly increased at the cost of additional latency. Servers using as much as 2TB of memory have been proposed using this technology.
Future server CPUs based on Ivy Bridge and Piledriver architectures are expected to make use of DDR3-1866 ECC Registered DIMMs or LR-DIMMs, and all three firms have plans for those as well. DDR3-1600 is a 20% increase in memory bandwidth over DDR3-1333, while DDR3-1866 is a 40% increase. Given the pace of memory advances in the server and workstation markets, these will have to do for the next couple of years.
This article is over a month old, voting and posting comments is disabled
RE: 2 TB is nothing special
10/25/2011 4:51:02 PM
Na, for me its interesting that DDR3 1600 becomes mainstream, as large dimm's then also will come down in price.
Like the CORSAIR Vengeance 8GB DDR3 1600, costing now $250 for 1 dimm!
Ware Kingston 8GB 240-Pin DDR3 SDRAM ECC Registered w/ Parity DDR3 1333 cost only $75
And even the Kingston 16GB 1333MHz DDR3 ECC Reg CL9 DIMM go's for rougly the same price as a 8GB DDR3 1600 module
So the quicker servers change to DDR3 1600 the quicker we can get fast and cheap modules.
And, having 4x 8GB memory on you board, you could suddenly use a RAM-disk that has ns instead of ms latency, you would never have waiting times when loading a game or switching map's.
Lots of main memory comes with a small performance hit, but that will be easily made up by the lack of using swap-files and the use of a ramdisk.
And un-registered memory what you use in normal home PCs is normally also cheaper to make, because they have no buffers, and no ECC also saves 12.5% in chip cost as there is no need for a extra parity mem-chip.
I would seriusly consider putting 8x8=64GB in a X79 mobo if i have to pay 8x$75=$600 for DDR3 1600 mem
"I'm an Internet expert too. It's all right to wire the industrial zone only, but there are many problems if other regions of the North are wired." -- North Korean Supreme Commander Kim Jong-il
AMD Launches FX CPUs with Bulldozer Architecture
October 12, 2011, 12:01 AM
Samsung Planning Cheaper "Green" DDR3 DRAM Using 30nm-Class Tech
February 1, 2010, 12:06 PM
Intel Aims for Efficiency With New Server Roadmap
February 10, 2009, 2:32 PM
The Future of DDR Memory is Serial
February 20, 2006, 1:05 PM
Google's Gleaming Glass HQ Gets Mountain View Snub, LinkedIn Gets the Love
May 7, 2015, 6:58 AM
Tech's Tax Day Fortunate Few: Qualcomm, Xerox, GE, et al. Pay Little or No Taxes
April 15, 2015, 11:30 AM
LinkNYC Terminals to Blanket New York City With Free WiFi, Free Calls, and Ads
November 17, 2014, 6:50 PM
Microsoft is Open-Sourcing Most of .NET, Adding OS X and Linux Support
November 12, 2014, 8:27 PM
Home Depot Lost 53 Million Emails, Blames Windows, Buys Execs New Macs
November 9, 2014, 5:00 PM
Former NSA Lawyer: If Google, Apple Encrypt User Data, They’ll Wither on the Vine Like Blackberry
November 6, 2014, 12:15 PM
Most Popular Articles
America's Largest Cable Company, Comcast, Sees Internet Subscriptions Pass TV
May 4, 2015, 2:46 PM
Can id Software's Doom Find Its Way Out of a 7+ Year Development Hell?
May 19, 2015, 7:38 PM
Oculus Rift Confirms "Pause" in OS X, Linux Development, Some Devs are Mad
May 18, 2015, 11:36 PM
The Pirate Bay Loses Its Iconic Swedish Dot SE Domains
May 20, 2015, 6:31 PM
In-Depth: Apple's ~$1B Court Victory Over Samsung to be Cut up to a Third
May 18, 2015, 9:20 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2015 DailyTech LLC. -
Terms, Conditions & Privacy Information