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Compared to DDR2 memory, DDR3 memory uses less power. Some manufacturers further propose using "dual-gate" transistors to reduce leakage of current. [10]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.
DDR3 advances extended the ability to preserve internal clock rates while providing higher effective transfer rates by again doubling the prefetch depth. The DDR4 SDRAM is a high-speed dynamic random-access memory internally configured as 16 banks, 4 bank groups with 4 banks for each bank group for ×4/×8 and 8 banks, 2 bank groups with 4 ...
DDR3 memory chips are being made commercially, [11] and computer systems using them were available from the second half of 2007, [12] with significant usage from 2008 onwards. [13] Initial clock rates were 400 and 533 MHz, which are described as DDR3-800 and DDR3-1066 (PC3-6400 and PC3-8500 modules), but 667 and 800 MHz, described as DDR3-1333 ...
1333 MHz DDR3-1333 / DDR2-800 dual channel 2.0 20 lanes No 5 Ports 12 Ports Rev 2.0 1 Ports UDMA 133 6 Ports 3.0 Gbit/s 1000 Mbit/s HDA: GeForce 9300: nForce 740i SLI MCP7A October 16, 2008 x8+x8 12 Ports Rev 2.0 none: nForce 750i SLI Crush72 + MCP51 + nForce200 2007 90 nm DDR2-800 dual channel 2.0 24 lanes 1.1 2 lanes x8+x8 8 Ports Rev 2.0
The DDR3 JEDEC standard for VLP DIMM height is around 0.740 inches (18.8 mm). These will fit vertically in ATCA systems. Full-height 240-pin DDR2 and DDR3 DIMMs are all specified at a height of around 1.18 inches (30 mm) by standards set by JEDEC. These form factors include 240-pin DIMM, SO-DIMM, Mini-DIMM and Micro-DIMM. [16]
DDR3 triple-channel architecture is used in the Intel Core i7-900 series (the Intel Core i7-800 series only support up to dual-channel). The LGA 1366 platform (e.g. Intel X58) supports DDR3 triple-channel, normally 1333 and 1600Mhz, but can run at higher clock speeds on certain motherboards.
DDR3-1600 65 W AD221XOJGXBOX AD221XOJZ22GX Athlon II X4 631 [31] August 15, 2011 4 (4) 2.6 GHz 4 × 1 MB DDR3-1866 100 W AD631XOJGXBOX AD631XWNZ43GX 2012 65 W AD631XOJGXBOX AD631XOJZ43GX Athlon II X4 638 [32] February 8, 2012 2.7 GHz AD638XOJGXBOX AD638XOJZ43GX Athlon II X4 641 [33] 2.8 GHz 100 W AD641XWNGXBOX AD641XWNZ43GX Athlon II X4 651 [34]
The ULLtraDIMM is compatible with the JEDEC MO-269 DDR3 RDIMM specification. [2] The ULLtraDIMM supports support both 1.35 V and 1.5 V operation from 800–1333 MHz, and 1.5 V @ 1600 MHz DDR3 transfer rates. DDR3 ECC bits are used to verify the integrity of the data being sent across memory bus.