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When will Dell, Gateway and other computer brands start offering DDR3 Ram in their computers?

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1. DDR3 SDRAM From Wikipedia, the free encyclopedia Jump to: navigation, search DRAM types * FPM RAM * EDO RAM * Burst EDO RAM * SDRAM o SDR SDRAM o DDR SDRAM o DDR2 SDRAM o DDR3 SDRAM o Rambus RAM + XDR DRAM + XDR2 DRAM o VC-RAM * Video RAM o WRAM * SGRAM * GDDR2 * GDDR3 * GDDR4 * GDDR5 In electronic engineering, DDR3 SDRAM or double-data-rate three synchronous dynamic random access memory is a random access memory technology used for high speed storage of the working data of a computer or other digital electronic devices. It is a part of the SDRAM family of technologies, which is one of many DRAM (dynamic random access memory) implementations, and is an improvement over its predecessor, DDR2 SDRAM. Its primary benefit is the ability to run its I/O bus at four times the speed of the memory cells it contains, thus enabling faster bus speeds and higher peak throughputs than earlier technologies. This is achieved at the cost of higher latency. Also, the DDR3 standard allows for chip capacities of 512 mebibit to 8 gibibit, effectively enabling memory modules of maximum 16 gibibyte in size. Contents [hide] * 1 Overview * 2 Specification standards o 2.1 Chips and modules o 2.2 Features o 2.3 Advantages compared to DDR2 o 2.4 Disadvantages compared to DDR2 * 3 References * 4 See also * 5 External links [edit] 1 Overview DDR3 memory comes with a promise of a power consumption reduction of 30% compared to current commercial DDR2 modules due to DDR3's 1.5 V supply voltage, compared to DDR2's 1.8 V or DDR's 2.5 V. This supply voltage works well with the 90 nm fabrication technology used for most DDR3 chips. Some manufacturers further propose to use "dual-gate" transistors to reduce leakage of current.[1] The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3's 8 bit deep prefetch buffer, whereas DDR2's is 4 bits, and DDR's is 2 bits deep. Theoretically, these modules could transfer data at the effective clock rate of 800–1600 MHz (using both edges of a 400–800 MHz I/O clock), compared to DDR2's current range of effective 400–800 MHz (200–400 MHz clock) or DDR's range of 200–400 MHz (100–200 MHz). To date, such bandwidth requirements have been mainly found in the graphics market, where fast transfer of information between framebuffers is required. Prototypes were announced in early 2005, and products are appearing on the market as of mid-[2007], in the form of motherboards[1] based on Intel's P35 "Bearlake" chipset and memory DIMMs at speeds up to DDR3-1600.[2]. AMD's roadmap indicates their own adoption of DDR3 to come in 2008. DDR3 DIMMs have 240 pins, the same number as DDR2, and are the same size, but are electrically incompatible and have a different key notch location.[3] GDDR3 memory, with a similar name but an entirely dissimilar technology, has been in use for several years in high-end graphic cards such as ones from NVIDIA or ATI Technologies, and as graphics system memory on the Sony Playstation 3. It has sometimes been incorrectly referred to as "DDR3". [edit] 2 Specification standards [edit] 2.1 Chips and modules Standard name Memory clock Cycle time I/O Bus clock Data transfers per second Module name Peak transfer rate DDR3-800 100 MHz 10 ns 400 MHz 800 Million PC3-6400 6400 MB/s DDR3-1066 133 MHz 7.5 ns 533 MHz 1066 Million PC3-8500 8533 MB/s DDR3-1333 166 MHz 6 ns 667 MHz 1333 Million PC3-10600 10667 MB/s[4] DDR3-1600 200 MHz 5 ns 800 MHz 1600 Million PC3-12800 12800 MB/s [edit] 2.2 Features DDR3 SDRAM Components: * Introduction of asynchronous RESET pin * Support of system level flight time compensation * On-DIMM Mirror friendly DRAM pin out * Introduction of CWL (CAS Write Latency) per speed bin * On-die IO calibration engine * READ and WRITE calibration DDR3 Modules: * Fly-by command/address/control bus with On-DIMM termination * High precision calibration resistors [edit] 2.3 Advantages compared to DDR2 * Higher bandwidth performance increase (up to effective 1600 MHz) * Performance increase at low power (longer battery life in laptops) * Enhanced low power features * Improved thermal design (cooler) [edit] 2.4 Disadvantages compared to DDR2 * Commonly higher CAS Latency * Generally costs much more than equivalent DDR2 memory. [edit] 3 References 1. ^ McCloskey., Alan. Research: DDR FAQ. Retrieved on 2007-10-18. * DDR3 SDRAM: Revolution or Evolution?. X-bit labs. * Raj Mahajan. Memory Design Considerations When Migrating to DDR3 Interfaces from DDR2. MemCore Inc www.memcoreinc.com. * Gregory Agostinelli. Method and Apparatus for fine tuning a memory interface. US PATENT OFFICE. [edit] 4 See also * DDR2 SDRAM * Fully Buffered DIMM * Dual channel * List of device bandwidths [edit] 5 External links * JEDEC DDR3-Standard JESD79-3 * Compare DDR DDR2 and DDR3 article at RMRoberts.com web site
2. WHEN ITS CHEAP!! now if you are looking for a computer that comes with it you have to buy it custom from stores like buyxg.com or build it yourself plus at the moment ddr3 and ddr4 are very expensive running around 125 per gig check out ewiz.com and newegg.com for current prices and dont forget dell has the black hawk which has ddr3 but its $7000 and you could build the same system for about $1200