Double Data Rate (DDR)

GPTKB entity

Statements (29)
Predicate Object
gptkbp:instanceOf gptkb:SDRAM
gptkbp:abbreviation Double Data Rate Synchronous Dynamic Random-Access Memory
gptkbp:compatibleWith DDR2 SDRAM
SDR SDRAM
gptkbp:containsModule gptkb:DIMM
gptkb:SO-DIMM
gptkbp:dataRate 400 MT/s
twice per clock cycle
https://www.w3.org/2000/01/rdf-schema#label Double Data Rate (DDR)
gptkbp:introduced late 1990s
gptkbp:latency higher than SDR SDRAM
gptkbp:mainFunction temporary data storage
gptkbp:marketedAs gptkb:SDRAM
gptkbp:maxModuleCapacity 1 GB
gptkbp:memoryBusWidth 64 bits
gptkbp:memoryType volatile memory
gptkbp:operatingSystem 2.5V
gptkbp:pinCount 184
gptkbp:predecessor Single Data Rate (SDR) SDRAM
gptkbp:standardizedBy gptkb:JEDEC
gptkbp:successor DDR2 SDRAM
gptkbp:usedFor system memory
gptkbp:usedIn computers
laptops
servers
graphics cards
gptkbp:bfsParent gptkb:Single_Data_Rate
gptkb:Double_Data_Rate_2
gptkbp:bfsLayer 7