DDR MEMORY NEW TCEHNOLOGY BANDWIDTH SREVERS, WORKSTATION NEXT GENERATION OF SDRAM.
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Transcript of DDR MEMORY NEW TCEHNOLOGY BANDWIDTH SREVERS, WORKSTATION NEXT GENERATION OF SDRAM.
![Page 1: DDR MEMORY NEW TCEHNOLOGY BANDWIDTH SREVERS, WORKSTATION NEXT GENERATION OF SDRAM.](https://reader036.fdocuments.us/reader036/viewer/2022071807/56649dc35503460f94ab627e/html5/thumbnails/1.jpg)
DDRDDR MEMORYMEMORY
NEW TCEHNOLOGYNEW TCEHNOLOGY BANDWIDTHBANDWIDTH SREVERS , WORKSTATION SREVERS , WORKSTATION NEXT GENERATION OF SDRAMNEXT GENERATION OF SDRAM
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DDR2 MEMORYDDR2 MEMORY
FASTER SPEEDSFASTER SPEEDS HIGHER DATA BANDWITHSHIGHER DATA BANDWITHS LOWER POWER CONSUMPTIONLOWER POWER CONSUMPTION ENHANCED THERMAL PERFORMANCEENHANCED THERMAL PERFORMANCE DESKTOPS , SERVERS , NOTEBOOKSDESKTOPS , SERVERS , NOTEBOOKS
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PERFORMANCE OF MEMORYPERFORMANCE OF MEMORY
SPEED = WIDTH * FREQUENCYSPEED = WIDTH * FREQUENCY
SPEED = MEMORY PERFORMANCE ( Mb/s)SPEED = MEMORY PERFORMANCE ( Mb/s)
WIDTH = MEMORY BUS (bits)WIDTH = MEMORY BUS (bits)
FREQUENCY = FREQUENCY OF DATA (MHz) FREQUENCY = FREQUENCY OF DATA (MHz)
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DDR2 versus DDR ModulesDDR2 versus DDR Modules
Feature DDR DDR2 DDR2 Advantage
MemoryPackage
TSOP and BGA FBGA onlyHigher speed and improved electrical and thermal p
erformance
On DieTermination
Memory signal terminated on motherboard
In chipTerminates memory signal in every chip to improve
signal and integrity
Voltage 2.5 volts 1.8 Volts Lower power consumption and heat dissipation
Memory Chip Size
128Mb - 1Gb256Mb-
4Gb*1Gb chip -> 2GB DIMM (no chip stacking)
4Gb chip -> 8GB DIMM (no chip stacking)
Frequency 200, 266, 333, 400 Mhz400, 533,
667Speed above 400MHz
ModuleBandwidth
Up to 6.4GB/s Dual ChannelUp to
10.6GB/s Highest memory performance
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Next Generation of MemoryNext Generation of Memory
DDR: supply voltage VDD = 2.5 DDR: supply voltage VDD = 2.5 VV DDR-2: supply voltage VDD = 1.8 DDR-2: supply voltage VDD = 1.8 VV DDR-3: supply voltage VDD not yet standardizedDDR-3: supply voltage VDD not yet standardized
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