The newest DDR3 memory now is
available
on BSI computer system
DDR3 SDRAM or double-data-rate three synchronous dynamic random access memory is a random access memory
technology used for high speed storage of the working data of a computer or other digital electronic device.
DDR3 primary benefit is the ability to run its bus at four times the speed of the memory cells it contains, thus enabling faster
bus speeds and higher peak throughputs than earlier technologies. Also, the DDR3 standard
allows for chip capacities of 512 Mbit to 8Gbit, effectively enabling memory modules of maximum 16 Gbyte in size.
DDR3 memory comes with a promise of a power consumption reduction of 16% compared to current commercial DDR2
modules, due to DDR3's 90 nm fabrication technology, allowing for lower operating currents and voltages
(1.5 V, compared to DDR2's 1.8 V or DDR's 2.5 V). "Dual-gate" transistors will be used to reduce leakage of current. citation needed.
The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3's 8 bit deep prefetch buffer, whereas DDR2's is 4 bits, and DDR's is 2 bits deep.
Standard name
|
Memory clock |
Time between signals |
I/O Bus clock |
Data transfers per second |
Module name |
|
DDR3-800 |
100 MHz |
|
|
800 Million |
|
|
DDR3-1066 |
|
|
|
|
|
|
DDR3-1333 |
|
|
|
|
|
10.67 GB/s |
DDR3 memory now is available at BSI computer systems. We have the motherboards with the newest chipset Intel P35 & ICH9R to support the newest DDR3 memory.
FAQ
Q. What is DDR3?
A. DDR3 is the next generation of Double Data Rate Synchronous Dynamic Random Access Memory. It is an evolution of DDR and DDR2 memory technology that delivers higher speed, lower power consumption and heat dissipation.
Q. Is DDR3 backward compatible with DDR2?
A. No. DDR3 memory chips and modules are very different from DDR2. For example, DDR3 runs at a lower voltage(1.5) than DDR2(1.8V).
Q. Can DDR3 DIMMs be plugged into DDR2 sockets or vice versa?
A. No. Memory modules have a special "Key" or notch in their connector. These keys must align with a key in the memory socket to allow the module to be inserted. All DDR3 and DDR2 module types are keyed differently.
Q. Are DDR3 chips different from DDR2?
A. DDR3 memory chips were internally redesigned to support higher speeds and lower power consumption, and dissipate less heat than DDR2. In addition, while DDR2 memory chips come in up to 2Gb chip sizes, DDR3 memory chips are specified by JEDEC to go up to 4Gb in capacity. |
