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None of its successors are forward or backward compatible with DDR1 SDRAM, meaning DDR2, DDR3, DDR4 and DDR5 memory modules will not work on DDR1-equipped motherboards, and vice versa. Compared to single data rate ( SDR ) SDRAM, the DDR SDRAM interface makes higher transfer rates possible through more strict control of the timing of the ...
English: This a graphics that compares DDR, DDR2, DDR3 and DDR4 desktop RAM memory SDRAM. This is not an exact technical graphic, it is just for display purpose. This is not an exact technical graphic, it is just for display purpose.
A 16GB [1] DDR4 SO-DIMM module by Micron. DDR4 memory is supplied in 288-pin dual in-line memory modules (DIMMs), similar in size to 240-pin DDR3 DIMMs. DDR4 RAM modules feature pins that are spaced more closely at 0.85 mm compared to the 1.0 mm spacing in DDR3, allowing for a higher pin density within the same standard DIMM length of 133.35 mm ...
Assorted SO-DIMM Modules A 200-pin PC2-5300 DDR2 SO-DIMM. A 204-pin PC3-10600 DDR3 SO-DIMM. A SO-DIMM slot on a computer motherboard. A SO-DIMM (pronounced "so-dimm" / ˈ s oʊ d ɪ m /, also spelled "SODIMM") or small outline DIMM, is a smaller alternative to a DIMM, being roughly half the physical size of a regular DIMM. The first SODIMMs had ...
The purpose of UniDIMMs is to handle the transition from DDR3 to DDR4, where pricing and availability may make it desirable to switch RAM type. UniDIMMs have the same dimensions and number of pins as regular DDR4 SO-DIMMs, but the notch is placed differently to avoid accidentally using in an incompatible DDR4 SO-DIMM socket. [18]
The following other wikis use this file: Usage on cs.wikipedia.org SO-DIMM; Usage on de.wikipedia.org Small Outline Dual Inline Memory Module; Usage on en.wikiversity.org
The DDR4 chips run at 1.2 V or less, [18] [19] compared to the 1.5 V of DDR3 chips, and have in excess of 2 billion data transfers per second. They were expected to be introduced at frequency rates of 2133 MHz, estimated to rise to a potential 4266 MHz [ 20 ] and lowered voltage of 1.05 V [ 21 ] by 2013.
UniDIMM is a SO-DIMM form factor available in two dimensions: 69.6 mm × 30 mm (2.74 by 1.18 inches) for the standard UniDIMM version (the same size as DDR4 SO-DIMMs [5]), and 69.6 mm × 20 mm (2.74 by 0.79 inches) for the low-profile version.