Computer Memory

How does ddr ram doubles the transfer rate as compared to sd ram?

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2011-11-05 10:29:46
2011-11-05 10:29:46

By transferring data on both rise and fall of the clock signal

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By transferring data on both the rise and fall of the clock speed


Ddr stands for double data rate. Which actually doubles the speed compare to sd ram


Yes. DDR2 memory has double the transfer rate of DDR memory.


DDR standards for "Double Data Rate". DDR can transfer data on both the rising and falling edge of the clock signal, whereas standard SD ram can onle transfer data on one or the other. This means data throughput on DDR memory is twice as fast, hence the name "Double Data Rate". Also, they are physically different: A DDR modules has one notch on the contact strip, SD modules have two. i donot know SDRAM comes in 100MHz and in 133MHz where as DDR comes in 266MHz, so DDR has double speed as comapred to SDRAM. SDRAM has 2 notches and DDR has only 1 notch.*and it is small in size


Full form of DDR is Double Data Rate. DDR-SDRAM : Double Data Rate Synchronous Dynamic Random Access Memory.


Depending on it's context, 'DDR' can have several meanings. Double Data Rate (refers to the transfer rate of computer memory) Dance Dance Revolution (a video game) Deutsche Demokratische Republik (was known in the US as East Germany) Direct to Disk Recording


Depending on it's context, 'DDR' can have several meanings.Double Data Rate (refers to the transfer rate of computer memory)Dance Dance Revolution (a video game)Deutsche Demokratische Republik (was known in the US as East Germany)Direct to Disk Recording


sdr means single data rate & ddr means double data rate


DDR stands for Double Data Rate, which means data travels at twice the clock rate. DDR is referring to RAM or Random Access Memory and the connector is the socket into which you install RAM.


DDR RAM doubles its speed by using both the rising and falling edge of the clock signal. The advantage of DDR and QDR signaling is that the clock rate does not have to be increased. So the integrity of the signal is not compromised since the throughput can be increased without increasing the clock rate.


DDR is double data rate. RAM is random access memory.


The DDR 333 model can be purchased through Amazon. DDR 333 is a type of memory used for computers. DDR is an acronym for 'double data rate'. The number specifies the memory speed.


DDR2 SDRAMdouble data rate synchronous dynamic random access memoryThe data rate is twice as fast as DDR SDRAM


Unfortunately not. DDR has a different amount of pins compared to a stick of DDR II. Also the slot position is slightly different. Hope this helps Be Safe Cadishead Computers


The term DDR SDRAM refers to the phrase "double data rate synchronous dynamic random access memory". DDR SDRAM is simply a faster version of SDRAM in which data travels at a double rate. If your computer specs say that it uses DDR SDRAM it can take DDR SDRAM, but not SDRAM. DDR is 184 pins and has a notch in the bottom near the center and you will be unable to put DDR in an SDRAM mother board and also unable to put SDRAM in a DDR motherboard. Recently a new type of RAM has been introduced to market called DDR2. DDR2 is its own type and will not fit into a DDR motherboard. Hope this helps. Peace.


Stands for "Double Data Rate." It is an advanced version of SDRAM, a type of computer memory. DDR-SDRAM, sometimes called "SDRAM II," can transfer data twice as fast as regular SDRAM chips. This is because DDR memory can send and receive signals twice per clock cycle. The efficient operation of DDR-SDRAM makes the memory great for notebook computers since it uses up less power.


DDR which is old and DDR2 is the most widely used. The DDR stands for Double Data Rate. DDR3 is next.


DDR laptop memory stands for Double Data Rate. The DDR means how fast your laptop can load data from your hard drive to your memory. This website explains things better: http://www.laptop-rentals.us/ddr-laptop-memory.htm


The difference is the speed at which is send data from the memory to the CPU. SDR = Single Data Rate DDR = Double Data Rate So in theory DDR should be twice as quick at sending data. However this doesn't mean that the computer will be twice as quick.


Basically, it is a type of Random Access Memory (RAM) slot, that supports Double Data Rate (DDR) RAM. DDR RAM is said to be twice as fast as Synchronous Dynamic (SD) RAM.


The ddr rams are much faster than sdr rams. In ddr rams the data rate is twice than that sdram. Since the data can be stored on both the ends of the ddr in contrast to the single sided data storage in sdrams, the ddr rams are considered much faster than its couterpart. Their name itself describes this difference single data rate - sd ram double data rate - dd ram. ddr2 rams are even faster than the ddr1 rams


The PC2700 DDR RAM was introduced in 2000, having been in development for four years since 1996. It was intended to improve the speed of data transfer.


DDR RAM (Double Data Rate RAM) Instead of processing data for each beat of the system clock, as regular SDRAM does, it processes data when the beat rises and again when it falls, doubling the data rate of memory. If a motherboard runs at 200 MHz, DDR memory runs at 400 MHz.


SDRAM and DDR RAM are memory integrated circuits used in computers. The difference between the two is the speed because SDRAM is a single data rate which is slower than DDR RAM that stands for the double data rate. Which means the chip reads or writes two words of data per clock cycle.


DDR RAM? Doube Data Rate Random Access Memory



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