Statements (196)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:microprocessor
gptkb:personal_computer gptkb:SDRAM |
| gptkbp:abbreviation |
gptkb:SDRAM
|
| gptkbp:access |
random access
|
| gptkbp:affects |
system speed
|
| gptkbp:allows |
random access to data
|
| gptkbp:alternativeName |
flash_memory
DDR4_SDRAM DDR_SDRAM DRAM DRAM_standard LPDDR NAND_flash_memory RAM Random_Access_Memory dynamic_random-access_memory memory_module memory_standard non-volatile_memory synchronous_dynamic_random-access_memory |
| gptkbp:alternativeTo |
gptkb:MRAM
SRAM Flash memory |
| gptkbp:application |
graphics API
main memory RAM in PCs RAM in game consoles RAM in laptops RAM in networking equipment RAM in smartphones |
| gptkbp:burstLength |
2, 4, or 8
|
| gptkbp:canBe |
replaced
upgraded |
| gptkbp:category |
gptkb:SDRAM
random-access memory synchronous DRAM volatile memory integrated circuit memory |
| gptkbp:cellType |
one transistor, one capacitor
|
| gptkbp:compatibleWith |
gptkb:SDRAM
gptkb:DDR3_SDRAM DDR2 SDRAM SDR SDRAM long-term storage standard DDR SDRAM sockets |
| gptkbp:component |
gptkb:microprocessor
|
| gptkbp:connectedTo |
gptkb:microprocessor
|
| gptkbp:contrastsWith |
gptkb:ROM
storage SRAM read-only memory sequential access memory |
| gptkbp:cost |
lower than SRAM
|
| gptkbp:dataRate |
200–400 MT/s
double data rate single data rate up to 400 MT/s |
| gptkbp:dataRetention |
milliseconds
|
| gptkbp:density |
high
|
| gptkbp:designedFor |
low power consumption
|
| gptkbp:enables |
multitasking
|
| gptkbp:failureMode |
data loss on power off
|
| gptkbp:feature |
clock synchronization
pipelined operation higher bandwidth than SDR SDRAM lower power consumption than SDR SDRAM transfers data on both rising and falling edges of the clock signal burst mode |
| gptkbp:formFactor |
gptkb:DIMM
gptkb:SDRAM gptkb:SO-DIMM |
| gptkbp:fullName |
gptkb:Dynamic_Random-Access_Memory
Double Data Rate Synchronous Dynamic Random-Access Memory |
| gptkbp:generation |
first generation of LPDDR
|
| gptkbp:hasBandwidth |
memory bandwidth
|
| gptkbp:hasLatency |
memory latency
|
| gptkbp:heldBy |
hardware component
essential for computing |
| https://www.w3.org/2000/01/rdf-schema#label |
SDRAM
|
| gptkbp:improves |
multitasking
system performance |
| gptkbp:introduced |
gptkb:JEDEC
1998 |
| gptkbp:introducedIn |
1968
1993 |
| gptkbp:inventedBy |
gptkb:Robert_Dennard
gptkb:Robert_H._Dennard |
| gptkbp:JEDECStandard |
gptkb:JESD79
|
| gptkbp:locatedIn |
memory modules
|
| gptkbp:losesDataWhen |
power is off
|
| gptkbp:mainFunction |
main memory
|
| gptkbp:manufacturer |
gptkb:Hynix
gptkb:Samsung gptkb:Infineon gptkb:Micron_Technology gptkb:Winbond gptkb:Infineon_Technologies gptkb:Nanya_Technology gptkb:SK_Hynix |
| gptkbp:market |
gptkb:consumer_electronics
embedded systems enterprise computing |
| gptkbp:marketedAs |
gptkb:PC-1600
gptkb:PC-2100 gptkb:PC-2700 gptkb:PC-3200 |
| gptkbp:marketLeaders |
gptkb:Kingston
gptkb:Corsair gptkb:Samsung gptkb:SK_Hynix Micron |
| gptkbp:measures |
bytes
gigabytes megabytes |
| gptkbp:memoryBusWidth |
64 bits
|
| gptkbp:memoryType |
volatile memory
|
| gptkbp:notUpgradableIn |
most smartphones
|
| gptkbp:numberOfLocations |
data
machine code programs active programs operating system data temporary files |
| gptkbp:operatesSynchronouslyWith |
system bus
|
| gptkbp:operatingSystem |
3.3V
1.8V 2.5 V |
| gptkbp:period |
nanoseconds
5-10 ns |
| gptkbp:pinCount |
184 (DIMM)
200 (SO-DIMM) |
| gptkbp:powerSource |
moderate
|
| gptkbp:predecessor |
gptkb:Mobile_SDRAM
SDR SDRAM |
| gptkbp:refreshInterval |
every few milliseconds
|
| gptkbp:relatedTo |
gptkb:SDRAM
virtual memory cache memory swap space |
| gptkbp:replacedBy |
gptkb:EDO_DRAM
none (still in use) |
| gptkbp:requires |
gptkb:battery
system performance refresh cycles constant power supply |
| gptkbp:samplingRate |
100–200 MHz
|
| gptkbp:speed |
gptkb:DDR5
gptkb:DDR4 DDR3 slower than SRAM |
| gptkbp:standardizedBy |
gptkb:JEDEC
|
| gptkbp:standsFor |
gptkb:SDRAM
gptkb:Synchronous_Dynamic_Random-Access_Memory gptkb:Low_Power_Double_Data_Rate |
| gptkbp:subspecies |
gptkb:SDRAM
gptkb:EDO_DRAM gptkb:FPM_DRAM gptkb:RDRAM |
| gptkbp:successor |
gptkb:SDRAM
gptkb:LPDDR2 DDR2 SDRAM |
| gptkbp:technology |
random-access memory
|
| gptkbp:timingParameter |
CAS latency
RAS to CAS delay Refresh Cycle Time Row Active Time Row Precharge Time |
| gptkbp:type |
gptkb:SDRAM
SRAM volatile memory |
| gptkbp:upgradableIn |
many computers
|
| gptkbp:usedBy |
gptkb:microprocessor
|
| gptkbp:usedFor |
caching
temporary data storage buffering running applications |
| gptkbp:usedIn |
embedded systems
computers laptops smartphones tablets mobile devices servers workstations desktop computers game consoles graphics cards ultrabooks |
| gptkbp:volatile |
true
|
| gptkbp:bfsParent |
gptkb:DVD
gptkb:International_Standard gptkb:microprocessor gptkb:personal_computer gptkb:Apple_Store |
| gptkbp:bfsLayer |
4
|