RELATED SEARCHES
Sponsored DDR Memory Results:
DDR Memory: SDRAM, Computers, PC2700, PC3200 And Modules
By:
Published: November 29, 2007
DDR Memory refers to Double Data Rate Memory, an advanced computer memory version considered by many to be the latest SDRAM model. For those who are not well-versed in computers, SDRAM is a highly-sophisticated computer memory type that can transfer stored data generally faster than the early forms of computer memories.
How the SDRAM gets to do this is through its memory system that is composed of two separate sets. When retrieving data, the SDRAM simply alternates between its two memory sets.
In the case of the DDR Memory, however, the current process being employed by SDRAM is set two times faster. The DDR Memory gets to do this because it has been essentially designed to transfer data two times for every single clock cycle.
Since the DDR Memory is closely associated to SDRAM, it has often been referred to as DDR-SDRAM and sometimes SDRAM II. Yet there is no doubt that computers will find the DDR Memory to be quite different from the SDRAM. For one, DDR Memory is quite efficient in its function and generally consumes very minimal power. This makes it highly recommended for installation in many notebook computers.
Previously, DDR Memory was available only in the PC2100 where it ran at a speed of 266 MHz. This was about five years ago when Intel launched its chipset of PC2100 that carried DDR Memory. This particular model proved to be quite a big hit that in just two weeks speculations went around saying that Intel was already preparing plans for a more sophisticated DDR Memory in the PC2700, where 333 MHz speeds are involved. The rumor was that the PC2700 would be able to transfer stored data at a rate of 2700 MB per second.
Eventually, the rumors proved to be accurate and the DDR Memory of the PC2700 was consequently released. The beauty about the DDR Memory technology of the PC2700 was that this is basically backward compatible. This means that modules running on a PC2100 DDR Memory will most likely accept the DDR Memory of the PC2700. However, this scenario applies only for modules that run at 266 MHz FSB for which the PC2700 having a 333 MHz speed is usually used.
Additionally, keep in mind that when a 333 MHz PC2700 is installed in modules running on 266 MHz, the modules will still operate in its current speed and not under the 333 MHz DDR Memory speed. This may sound a bit disappointing for those interested in using the DDR Memory, but there are upgrades available. In particular, modules can easily be fitted with a 333MHz FSB during which the DDR Memory of the PC2700 can be conveniently installed.
Obviously, the technology of the DDR Memory has proven to be quite efficient that competitors have made several announcements three years ago about the forthcoming completion of a more advanced DDR Memory design referred to as the PC3200.
These announcements became flesh about a year later when the PC3200 was finally released boasting of a transfer rate capacity of about 3200 MB per second or approximately 3.2 GB per second. Initially, the DDR Memory of the PC3200 was reported to have the capability to run at two different speeds, namely, 400 and 533 MHz. Later on, however, the 400 MHz speed rate was dropped and the 533 MHz was adopted as the starting speed for the DDR Memory of the PC3200.
Sources:
"What is DDR?" iWeb Tool. 2005-2008. 20 Nov. 2007. http://www.iwebtool.com/what_is_ddr.html
"Will My Machine Run Faster With PC2700 or PC3200?" DMS Data Memory Systems. Data Memory Systems Inc. 20 Nov. 2007. http://www.datamemorysystems.com/faq.asp#13
"What is PC2700 DDR SDRAM ?" Simm Tester. 31 Jan. 2002. CST, Inc. 20 Nov. 2007.
http://www.simmtester.com/page/news/showpubnews. asp?title=What+is+PC2700+DDR+SDRAM+%3F&num=80< />
"An Unofficial Guide to DDR400 or PC3200 DDR SDRAM." Simm Tester. 9 July 2002. CST, Inc. 20 Nov. 2007. http://www.simmtester.com/page/news/showpubnews.as p?title=An+unofficial+guide+to+DDR400+or+PC3200+DD
In the case of the DDR Memory, however, the current process being employed by SDRAM is set two times faster. The DDR Memory gets to do this because it has been essentially designed to transfer data two times for every single clock cycle.
Since the DDR Memory is closely associated to SDRAM, it has often been referred to as DDR-SDRAM and sometimes SDRAM II. Yet there is no doubt that computers will find the DDR Memory to be quite different from the SDRAM. For one, DDR Memory is quite efficient in its function and generally consumes very minimal power. This makes it highly recommended for installation in many notebook computers.
Previously, DDR Memory was available only in the PC2100 where it ran at a speed of 266 MHz. This was about five years ago when Intel launched its chipset of PC2100 that carried DDR Memory. This particular model proved to be quite a big hit that in just two weeks speculations went around saying that Intel was already preparing plans for a more sophisticated DDR Memory in the PC2700, where 333 MHz speeds are involved. The rumor was that the PC2700 would be able to transfer stored data at a rate of 2700 MB per second.
Eventually, the rumors proved to be accurate and the DDR Memory of the PC2700 was consequently released. The beauty about the DDR Memory technology of the PC2700 was that this is basically backward compatible. This means that modules running on a PC2100 DDR Memory will most likely accept the DDR Memory of the PC2700. However, this scenario applies only for modules that run at 266 MHz FSB for which the PC2700 having a 333 MHz speed is usually used.
Additionally, keep in mind that when a 333 MHz PC2700 is installed in modules running on 266 MHz, the modules will still operate in its current speed and not under the 333 MHz DDR Memory speed. This may sound a bit disappointing for those interested in using the DDR Memory, but there are upgrades available. In particular, modules can easily be fitted with a 333MHz FSB during which the DDR Memory of the PC2700 can be conveniently installed.
Obviously, the technology of the DDR Memory has proven to be quite efficient that competitors have made several announcements three years ago about the forthcoming completion of a more advanced DDR Memory design referred to as the PC3200.
These announcements became flesh about a year later when the PC3200 was finally released boasting of a transfer rate capacity of about 3200 MB per second or approximately 3.2 GB per second. Initially, the DDR Memory of the PC3200 was reported to have the capability to run at two different speeds, namely, 400 and 533 MHz. Later on, however, the 400 MHz speed rate was dropped and the 533 MHz was adopted as the starting speed for the DDR Memory of the PC3200.
Sources:
"What is DDR?" iWeb Tool. 2005-2008. 20 Nov. 2007. http://www.iwebtool.com/what_is_ddr.html
"Will My Machine Run Faster With PC2700 or PC3200?" DMS Data Memory Systems. Data Memory Systems Inc. 20 Nov. 2007. http://www.datamemorysystems.com/faq.asp#13
"What is PC2700 DDR SDRAM ?" Simm Tester. 31 Jan. 2002. CST, Inc. 20 Nov. 2007.
http://www.simmtester.com/page/news/showpubnews. asp?title=What+is+PC2700+DDR+SDRAM+%3F&num=80< />
"An Unofficial Guide to DDR400 or PC3200 DDR SDRAM." Simm Tester. 9 July 2002. CST, Inc. 20 Nov. 2007. http://www.simmtester.com/page/news/showpubnews.as p?title=An+unofficial+guide+to+DDR400+or+PC3200+DD
Featured DDR Memory Products:
