Kingston's 2,544 MHz DDR3 On Show at Computex, News.softpedia.com, 2010-05-31 , retrieved 2012-01-23 Understanding DDR3 Serial Presence Detect (SPD) Table". simmtester.com . Retrieved 12 December 2015. According to JEDEC, [11] :111 1.575 volts should be considered the absolute maximum when memory stability is the foremost consideration, such as in servers or other mission-critical devices. In addition, JEDEC states that memory modules must withstand up to 1.80 volts [a] before incurring permanent damage, although they are not required to function correctly at that level. [11] :109 How Intel Plans to Transition Between DDR3 and DDR4 for the Mainstream". techpowerup.com . Retrieved 19 March 2018. Compared to DDR2 memory, DDR3 memory uses less power. Some manufacturers further propose using "dual-gate" transistors to reduce leakage of current. [10]

Addendum No. 1 to JESD79-3 - 1.35 V DDR3L-800, DDR3L-1066, DDR3L-1333, DDR3L-1600, and DDR3L-1866". May 2013 . Retrieved 2019-09-08. In addition to bandwidth designations (e.g. DDR3-800D), and capacity variants, modules can be one of the following:DocMemory (2007-02-21). "Memory Module Picture 2007". Archived from the original on 2017-06-06 . Retrieved 2022-01-05. Bryan, Gardiner (April 17, 2007). "DDR3 Memory Won't Be Mainstream Until 2009". ExtremeTech.com . Retrieved 2009-06-17. Cutress, Ian (2014-02-11). "I'M Intelligent Memory to release 16GB Unregistered DDR3 Modules". anandtech.com . Retrieved 2015-04-20.

As with earlier memory generations, faster DDR3 memory became available after the release of the initial versions. DDR3-2000 memory with 9-9-9-28 latency (9ns) was available in time to coincide with the Intel Core i7 release in late 2008, [19] while later developments made DDR3-2400 widely available (with CL 9–12cycles = 7.5–10ns), and speeds up to DDR3-3200 available (with CL 13cycles = 8.125ns). McCloskey, Alan, Research: DDR FAQ, archived from the original on 2007-11-12 , retrieved 2007-10-18 DDR3 dual-inline memory modules (DIMMs) have 240 pins and are electrically incompatible with DDR2. A key notch—located differently in DDR2 and DDR3 DIMMs—prevents accidentally interchanging them. Not only are they keyed differently, but DDR2 has rounded notches on the side and the DDR3 modules have square notches on the side. [16] DDR3 SO-DIMMs have 204 pins. [17] Shilov, Anton (2008-10-29). "Kingston Rolls Out Industry's First 2GHz Memory Modules for Intel Core i7 Platforms". Xbit Laboratories. Archived from the original on 2008-11-01 . Retrieved 2008-11-02.

Reduce your impact on the Environment

JEDEC Solid State Technology Association announced the publication of JEDEC DDR3L on July 26, 2010 [35] and the DDR3U in October 2011. [36] Feature summary [ edit ] Components [ edit ] IDF: "DDR3 won't catch up with DDR2 during 2009" ". pcpro.co.uk. 19 August 2008. Archived from the original on 2009-04-02 . Retrieved 2009-06-17.

DDR2 PC2-4200 (commonly referred to as DDR2-533) memory is DDR2 designed for use in systems with a 266MHz front-side bus (providing a 533MT/s data transfer rate). The "4200" refers to the module's bandwidth (the maximum amount of data it can transfer each second), which is 4200MB/s, or 4.2GB/s. ECC memory, which has an extra data byte lane used for correcting minor errors and detecting major errors for better reliability. Modules with ECC are identified by an additional ECC or E in their designation. For example: "PC3-6400 ECC", or PC3-8500E. [29]

DDR3 memory utilizes serial presence detect. [26] Serial presence detect (SPD) is a standardized way to automatically access information about a computer memory module, using a serial interface. It is typically used during the power-on self-test for automatic configuration of memory modules. 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 8GB DIMMs (Intel's Core 2 DDR3 chipsets only support up to 2 Gbit). All AMD CPUs correctly support the full specification for 16GB DDR3 DIMMs. [1] History [ edit ] a b Sobolev, Vyacheslav (2005-05-31). "JEDEC: Memory standards on the way". DigiTimes.com. Archived from the original on April 13, 2013 . Retrieved 2011-04-28. JEDEC is already well along in the development of the DDR3 standard, and we have been working on it for about three years now.... Following historical models, you could reasonably expect the same three-year transition to a new technology that you have seen for the last several generations of standard memory