Ram memory 8GB kit (2 x 4GB) DDR3 PC3-12800,1600MHz, 204 PIN SODIMM for laptops

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Soderstrom, Thomas (2007-06-05). "Pipe Dreams: Six P35-DDR3 Motherboards Compared". Tom's Hardware. Intel Corporation officially introduced the eXtreme Memory Profile ( XMP) Specification on March 23, 2007, to enable enthusiast performance extensions to the traditional JEDEC SPD specifications for DDR3 SDRAM. [28] Variants [ edit ] How Intel Plans to Transition Between DDR3 and DDR4 for the Mainstream". techpowerup.com . Retrieved 19 March 2018. Bryan, Gardiner (April 17, 2007). "DDR3 Memory Won't Be Mainstream Until 2009". ExtremeTech.com . Retrieved 2009-06-17. Non-registered (a.k.a. " unbuffered") RAM may be identified by an additional U in the designation. [30]

Power consumption of individual SDRAM chips (or, by extension, DIMMs) varies based on many factors, including speed, type of usage, voltage, etc. Dell's Power Advisor calculates that 4GB ECC DDR1333 RDIMMs use about 4W each. [20] By contrast, a more modern mainstream desktop-oriented part 8GB, DDR3/1600 DIMM, is rated at 2.58W, despite being significantly faster. [21] Modules [ edit ] List of standard DDR3 SDRAM modules DDR3: Frequently Asked Questions" (PDF). Archived from the original (PDF) on 2009-12-29 . Retrieved 2009-08-18.DDR3 does use the same electric signaling standard as DDR and DDR2, Stub Series Terminated Logic, albeit at different timings and voltages. Specifically, DDR3 uses SSTL_15. [13] Dell Energy Smart Solution Advisor". Essa.us.dell.com. Archived from the original on 2013-08-01 . Retrieved 2013-07-28.

Release 4 of the DDR3 Serial Presence Detect (SPD) document (SPD4_01_02_11) adds support for Load Reduction DIMMs and also for 16b-SO-DIMMs and 32b-SO-DIMMs. 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] Understanding DDR3 Serial Presence Detect (SPD) Table". simmtester.com . Retrieved 12 December 2015. 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. DDR3L VDD/VDDQ requirements - Power Supply: DDR3L operation = 1.283 V to 1.45 V; DDR3 operation = 1.425 V to 1.575 V .. Once initialized for DDR3L operation, DDR3 operation may only be used if the device is in reset while VDD and VDDQ are changed for DDR3 operationSalisbury, Andy (2009-01-20). "New 50nm Process Will Make DDR3 Faster and Cheaper This Year". Pcgamer . Retrieved 2009-06-17. Chang, Jaci (2004). "Design Considerations for the DDR3 Memory Sub-System" (PDF). Jedex. p.4. Archived from the original (PDF) on 2012-07-24 . Retrieved 2020-08-12. Kingston's 2,544 MHz DDR3 On Show at Computex, News.softpedia.com, 2010-05-31 , retrieved 2012-01-23 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.

Specification Will Encourage Lower Power Consumption for Countless Consumer Electronics, Networking and Computer Products". While the typical latencies for a JEDEC DDR2-800 device were 5-5-5-15 (12.5ns), some standard latencies for JEDEC DDR3 devices include 7-7-7-20 for DDR3-1066 (13.125ns) and 8-8-8-24 for DDR3-1333 (12ns). 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. Alternative naming: DDR3 modules are often incorrectly labeled with the prefix PC (instead of PC3), for marketing reasons, followed by the data-rate. Under this convention PC3-10600 is listed as PC1333. [25] Serial presence detect [ edit ]

Shilov, Anton (August 16, 2010). "Next-Generation DDR4 Memory to Reach 4.266GHz – Report". XbitLabs.com. Archived from the original on December 19, 2010 . Retrieved 2011-01-03. The DDR3L ( DDR3 Low Voltage) standard is an addendum to the JESD79-3 DDR3 Memory Device Standard specifying low voltage devices. [31] The DDR3L standard is 1.35V and has the label PC3L for its modules. Examples include DDR3L‐800 (PC3L-6400), DDR3L‐1066 (PC3L-8500), DDR3L‐1333 (PC3L-10600), and DDR3L‐1600 (PC3L-12800). Memory specified to DDR3L and DDR3U specifications is compatible with the original DDR3 standard, and can run at either the lower voltage or at 1.50 V. [32] However, devices that require DDR3L explicitly, which operate at 1.35V, such as systems using mobile versions of fourth-generation Intel Core processors, are not compatible with 1.50V DDR3 memory. [33] DDR3L is different from and incompatible with the LPDDR3 mobile memory standard. 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. 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