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How is SD RAM different from DD RAM?


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Answered 2015-07-15 19:02:17

SD Ram is actually SDR SDRAM, and DD Ram is actually DDR SDRAM, though the former does not usually have the SDR in front of it. The letters SDR and DDR stand for Single Data Rate and Double Data Rate, and the letters SDRAM stand for Synchronous Dynamic Random Access Memory. The main difference between SDR and DDR memory is speed. There are a lot of little differences, but the main one (IMHO) that affects the user is speed: DDR can transfer data at roughly twice the speed of SDR. More speedy data rates = better performance. Just remember, the motherboard you are using must include the appropriate chipset to support the different RAM types. They are not interchangeable. SDR SDRAM comes in three main flavors: PC66, PC100 and PC133. Each successive number refers to the bus speed of the RAM in MHz, thus PC66 runs at 66 MHz, PC100 runs at 100 MHz, etc. SDR SDRAM has 168 pins at the connector.

DDR SDRAM has 184 pins at the connector, which is one reason you can't just use DDR instead of SDR, and comes in many different flavors; PC2100 which runs at 266 MHz, PC2700 which runs at 333 MHz, PC3200 which runs at 400 MHz, etc. While the numbers on SDR SDRAM referred to clock speeds, the DDR SDRAM numbers come from the theoretical maximum bandwidth in Megabytes per second (MB/s). Thus, PC2100 has a theoretical maximum bandwidth of 2100 MB/s, but runs at 133 MHz. DDR SDRAM modules are now available from PC1600 all the way up to PC4400, which has a bandwidth of 4400 MB/s and runs at 550 MHz. In order to know which type of RAM you need, you must know what your motherboard supports. I recommend searching the motherboard manufacturer's website for this info, or review sites like tomshardware.com or sharkyextreme.com. Good luck!

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What is the full form of sd ram and dd ram?

DD- demand draft... its the word you'll get to heat in banks.... and DD is for the transfer of money to the others account....... for applying govt jobs / some other jobs, they ask you send DD of some amount and all........ i hope its correct...... thank you.......Avinash


Can 184 pin ddr ram replace 168 pin sd ram?

no it can not..2 different sticks of ram


What is SD-RAM?

SD-RAM is synchronous Dynamic RAM and it is the only type of RAM that can be used in a laptop.


Full form of sd-RAM?

---sd-RAM--- The full form of sd-RAM is Synchronous dynamic random access memory. callltb@yahoo.com


What is SD RAM?

I need answer plz tell me difference between sd ram and as ddr ram


What ram does windows 95 use?

32mb sd ram or 64 mb sd ram


Can you use sd ram and dd ram on one PC?

Not both at the same time. Most motherboards will be able to support both types of RAM but DDR RAM is much better, due to the double data capability it has. Since RAM prices are quite cheap it would be better if you throw out your SD RAM and buy DDR. No you cannot use both ddr ram and sd ram on the same pc. You have to use either or depending on the motherboard. The slots are different. You can determine what type of memory you have by entering setup in the bios when you turn on your pc. DDR Ram has a slot in the very center of the chip that forms to the slot you plug it into. SD ram has a slot on the chip off set the middle. Hope this answers your question. No you cannot use both ddr ram and sd ram on the same pc. You have to use either or depending on the motherboard. The slots are different. You can determine what type of memory you have by entering setup in the bios when you turn on your pc. DDR Ram has a slot in the very center of the chip that forms to the slot you plug it into. SD ram has a slot on the chip off set the middle. Hope this answers your question


Is the sd ram is double cut?

Yes sd ram have two cuts


Is PC 133 ram compatible with sd ddr?

No. PC133 SDRAM and DDR1 ram are different in many ways.


Is an SD RAM cable suitable for DDR RAM?

ram doesn't use a cable, but sd and ddr are not compatible


Can you use ddr ram on your computer that is using sd ram?

No you have to change the whole system build to change from DDR to SD or SD to DDR.


What type of ram do laptops use?

The type of RAM that laptops use is SD-RAM.


What kind of ram cards do laptops use?

The RAM is use in laptops are SD-RAM


Which is better a ddr2 sd-ram or a ddr2 ram?

They are the same in your case. SD defines the ram as synchronous dynamic, the most common version or DRAM and offen spoke as just RAM.


Is SD RAM or D RAM faster?

SDRAM is faster than DRAM!


What type of ram isused in laptops?

The type of RAM that is used in laptops would be the smallest RAM which would be SD-RAM.


What does DD RAM stand for?

DDR RAM? Doube Data Rate Random Access Memory


Can moldy cheese kill you?

hahahahhahaha dfsjdlfs sdklfs\ fskdjflsd fsfjsdlfjls fsdfs dfsd f sd dsdf sd f sd fs df sd fs d fsd f sdf d fd d d d d d dd d d d d d d d d d d dd d hahahahhahaha dfsjdlfs sdklfs\ fskdjflsd fsfjsdlfjls fsdfs dfsd f sd dsdf sd f sd fs df sd fs d fsd f sdf d fd d d d d d dd d d d d d d d d d d dd d


Can you add a pc133 256mb ram card to pc3200 512mb ram?

No, pc133 is SD ram and Pc3200 is DDR ram. They are not compatible with each other.


What is a SD and a DD Drawing?

SD-Schematic Design(or Drawings)-usually around 25% complete, DD-Design and Development (or Design Drawings)-around 50% complete & CD-Construction Drawings or Contract Drawings (or documents)-usually 100% complete


Where is the SD card on a computer?

Some laptops have a slot to read SD cards. You will need a universal card reader.There is a component called the SD RAM


What are some devices that use SD RAM?

SD-RAM, or synchronous direct-access RAM is used in most computers to provide a memory space for the computer to do its processing. It is also used in some other electronic devices, such as smartphones or tablets.


SD RAM current price?

compare prices at cnet.com or pcworld.com


What Sd ram means?

Synchronous Dynamic Random Access Memory


What is the smallest RAM?

The smallest type of RAM would be SD - RAM which is used in laptops and the amount of RAM each card can have will be anywhere around 512 Mb up to 2 GB.


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