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DDR2 Naming conventions and Bandwidths

The specifications for DDR2 memory modules are developed and approved by JEDEC. JEDEC is the semiconductor standardization body of the Electronic Industries Alliance (EIA). About 300 member companies representing every segment of the industry actively participate to develop standards to meet the industry needs. Kingston is a long-time member of JEDEC and is active on the JEDEC Board of Directors as well as a number of memory technology committees.

Memory Speed Memory Chip Classification Module Classification Module Bandwidth Dual-Channel DDR2 System Bandwidth
400MHz DDR2-400 PC2-3200 3.2 GB/s 6.4 GB/s
533MHz DDR2-533 PC2-4200 4.2 GB/s 8.4 GB/s
667MHz DDR2-667 PC2-5300 5.3 GB/s 10.6 GB/s
800MHz DDR2-800 PC2-6400 6.4 GB/s 12.8 GB/s

DDR2 naming conventions are similar to DDR's. Unlike DDR, DDR2 can be mass-produced in speeds in excess of 400MHz, thereby delivering increased system performance.


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