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DDR3 SDRAM information


This article is about the computer main memory. For the graphics memory, see GDDR3. For the mobile memory, see LPDDR3. For the video game, see Dance Dance Revolution 3rdMix.
DDR3 SDRAM
Double Data Rate 3 Synchronous Dynamic Random-Access Memory
Type of RAM
4 GB PC3-12800 ECC DDR3 DIMM
DeveloperJEDEC
TypeSynchronous dynamic random-access memory (SDRAM)
Generation3rd generation
Release date2007; 17 years ago (2007)
Standards
  • DDR3-800 (PC3-6400)
  • DDR3-1066 (PC3-8500)
  • DDR3-1333 (PC3-10600)
  • DDR3-1600 (PC3-12800)
  • DDR3-1866 (PC3-14900)
  • DDR3-2133 (PC3-17000)
Clock rate400–1066 MHz
Voltage Reference 1.5 V
PredecessorDDR2 SDRAM (2003)
SuccessorDDR4 SDRAM (2014)

Double Data Rate 3 Synchronous Dynamic Random-Access Memory (DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate") interface, and has been in use since 2007. It is the higher-speed successor to DDR and DDR2 and predecessor to DDR4 synchronous dynamic random-access memory (SDRAM) chips. DDR3 SDRAM is neither forward nor backward compatible with any earlier type of random-access memory (RAM) because of different signaling voltages, timings, and other factors.

DDR3 is a DRAM interface specification. The actual DRAM arrays that store the data are similar to earlier types, with similar performance. The primary benefit of DDR3 SDRAM over its immediate predecessor DDR2 SDRAM, is its ability to transfer data at twice the rate (eight times the speed of its internal memory arrays), enabling higher bandwidth or peak data rates.

The DDR3 standard permits DRAM chip capacities of up to 8 gigabits (Gbit), and up to four ranks of 64 bits each for a total maximum of 16 gigabytes (GB) per DDR3 DIMM. Because of a hardware limitation not fixed until Ivy Bridge-E in 2013, most older Intel CPUs only support up to 4-Gbit chips for 8 GB DIMMs (Intel's Core 2 DDR3 chipsets only support up to 2 Gbit). All AMD CPUs correctly support the full specification for 16 GB DDR3 DIMMs.[1]

  1. ^ Cutress, Ian (2014-02-11). "I'M Intelligent Memory to release 16GB Unregistered DDR3 Modules". anandtech.com. Retrieved 2015-04-20.

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DDR3 SDRAM

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Synchronous Dynamic Random-Access Memory (DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate")...

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DDR SDRAM

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SDRAM, also retroactively called DDR1 SDRAM, has been superseded by DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM. None of its successors are forward...

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DDR4 SDRAM

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2012-11-27, retrieved 2012-09-15 "Main Memory: DDR4 & DDR5 SDRAM". JEDEC. Retrieved 2012-04-14. "DDR3 SDRAM Standard JESD79-3F, sec. Table 69 – Timing Parameters...

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DDR2 SDRAM

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the original DDR SDRAM specification, and was itself succeeded by DDR3 SDRAM in 2007. DDR2 DIMMs are neither forward compatible with DDR3 nor backward compatible...

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DIMM

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for DDR2 SDRAM 200-pin: DDR SDRAM and DDR2 SDRAM 204-pin: DDR3 SDRAM 260-pin: DDR4 SDRAM 260-pin: UniDIMMs carrying either DDR3 or DDR4 SDRAM; differently...

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Serial presence detect

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defined for the tenths digit to represent some common timings exactly: The DDR3 SDRAM standard significantly overhauls and simplifies the SPD contents layout...

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AMD 10h

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Cool'n'Quiet, AMD-V Memory support: DDR2 SDRAM up to PC2-8500 (DDR2-1066 MHz), DDR3 SDRAM up to PC3-10600 (DDR3-1333 MHz) (Socket AM3 only) Models: Phenom...

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GDDR5 SDRAM

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SDRAM (graphics DDR SDRAM). Like its predecessor, GDDR4, GDDR5 is based on DDR3 SDRAM memory, which has double the data lines compared to DDR2 SDRAM....

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List of AMD Phenom processors

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GDDR4 SDRAM

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Standard. It is a rival medium to Rambus's XDR DRAM. GDDR4 is based on DDR3 SDRAM technology and was intended to replace the DDR2-based GDDR3, but it ended...

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JEDEC memory standards

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JEDEC dictionary entry "DDR3 SDRAM STANDARD | JESD79-3F". JEDEC. Jul 2012. Retrieved 2022-08-21. JEDEC, Double Data Rate (DDR) SDRAM Specification (PDF),...

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DDR5 SDRAM

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Random-Access Memory (DDR5 SDRAM) is the latest type of synchronous dynamic random-access memory. Compared to its predecessor DDR4 SDRAM, DDR5 was planned to...

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Socket AM3

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designed for it. The sole principal change from AM2+ to AM3 is support for DDR3 SDRAM. The fastest CPU for socket AM3 is the Phenom II X6 1100T. Like the previous...

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Mac Mini

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ATI Radeon 9200 graphics processor (GPU) with 32 megabytes (MB) of DDR SDRAM was supplied as standard; in the final 2005 model, Apple added a high-end...

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Qosmio

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2013, featuring an Intel Core i7 processor with up to 32 gigabytes of DDR3 SDRAM and an Nvidia GeForce GTX 770M as well as a 17.3-inch Full HD display...

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Micron Memory Japan

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and Elpida Akita changed its name to Micron Akita, Inc. DDR4 SDRAM DDR2 SDRAM DDR3 SDRAM Mobile RAM GDDR5 XDR DRAM Micron has two design centers, one...

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List of interface bit rates

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DDR2 memory is usually installed in single- or dual-channel configuration. DDR3 memory is installed in single-, dual-, tri-, and quad-channel configurations...

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Opteron

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processor possesses an integrated memory controller supporting DDR SDRAM, DDR2 SDRAM or DDR3 SDRAM (depending on processor generation). This both reduces the...

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Flyby

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gravity field of a passed celestial body Fly-by, circuit topology used in DDR3 SDRAM memory technology Flybys (album), a 2003 album by The Curtains "Fly By"...

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Memory module

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DDR SDRAM and SO-DIMM DDR2 SDRAM 204-pin (64-bit) used for SO-DIMM DDR3 SDRAM 260-pin used for SO-DIMM DDR4 SDRAM 262-pin used for SO-DIMM DDR5 SDRAM Bruce...

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Mac Pro

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FB-DIMMS, the 2009 and onward Mac Pro use 1066 MHz DDR3 ECC DIMMs for the standard models, and 1333 MHz DDR3 ECC DIMMs for systems configured with 2.66 GHz...

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Intel P35

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support of DDR3 SDRAM. It also supports DDR2 SDRAM; the choice is made by the motherboard manufacturer, and some manufacturers supported both DDR3 and DDR2...

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Row hammer

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However, researchers proved in a 2014 analysis that commercially available DDR3 SDRAM chips manufactured in 2012 and 2013 are susceptible to disturbance errors...

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Double data rate

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memory chip. DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM GDDR SDRAM, GDDR3 SDRAM, GDDR4 SDRAM, GDDR5 SDRAM and GDDR6 SDRAM List of interface...

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Memory timings

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75 ns. It is for this reason that DDR3-2666 CL9 has a smaller absolute CAS latency than DDR3-2000 CL7 memory. Both for DDR3 and DDR4, the four timings described...

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LGA 1156

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two DisplayPort connections. Two memory channels for communication with DDR3 SDRAM. The clock speed of the memory that is supported will depend on the processor...

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Ouya

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original on January 21, 2019. Retrieved November 5, 2015. "4Gb B-die DDR3 SDRAM" (PDF). Samsung Electronics Co., Ltd. Archived (PDF) from the original...

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