DDR4 SDRAM
Type of computer memory introduced 2014 / From Wikipedia, the free encyclopedia
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Double Data Rate 4 Synchronous Dynamic Random-Access Memory (DDR4 SDRAM) is a type of synchronous dynamic random-access memory with a high bandwidth ("double data rate") interface.
Type of RAM | |
Developer | JEDEC |
---|---|
Type | Synchronous dynamic random-access memory (SDRAM) |
Generation | 4th generation |
Release date | 2014; 10 years ago (2014) |
Standards |
|
Clock rate | 800–1600 MHz |
Voltage | Reference 1.2 V |
Predecessor | DDR3 SDRAM (2007) |
Successor | DDR5 SDRAM (2020) |
Released to the market in 2014,[2][3][4] it is a variant of dynamic random-access memory (DRAM), of which some have been in use since the early 1970s,[5] and a higher-speed successor to the DDR2 and DDR3 technologies.
DDR4 is not compatible with any earlier type of random-access memory (RAM) due to different signaling voltage and physical interface, besides other factors.
DDR4 SDRAM was released to the public market in Q2 2014, focusing on ECC memory,[6] while the non-ECC DDR4 modules became available in Q3 2014, accompanying the launch of Haswell-E processors that require DDR4 memory.[7]