Difference between DDR2 and DDR3

detail about difference between ddr2 and ddr3 ram
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  1. DDR2 and DDR3 are improvements on the same technology and further increase the number of data transfers per clock cycle. DDR2 RAM provides 4 data transfers per cycle, while DDR3 increases the number to 8. Assuming a base clock speed of 100Mhz, DDR RAM will provide 1600 MB/s of Bandwidth, DDR2 provides 3200 MB/s, and DDR3 provides 6400 MB/s. More is always better!

    Does this mean you’ll notice a big difference between DDR2 and DDR3 systems? Well, maybe not. While the increase in memory bandwidth is great, the truth is that 99% of programs are not capable of creating a workload that will be restricted by memory bandwidth. The issue is most relevant to server and workstation class products.
  2. te100 said:
    DDR2 and DDR3 are improvements on the same technology and further increase the number of data transfers per clock cycle. DDR2 RAM provides 4 data transfers per cycle, while DDR3 increases the number to 8. Assuming a base clock speed of 100Mhz, DDR RAM will provide 1600 MB/s of Bandwidth, DDR2 provides 3200 MB/s, and DDR3 provides 6400 MB/s. More is always better!

    Does this mean you’ll notice a big difference between DDR2 and DDR3 systems? Well, maybe not. While the increase in memory bandwidth is great, the truth is that 99% of programs are not capable of creating a workload that will be restricted by memory bandwidth. The issue is most relevant to server and workstation class products.


    couldn't of been said any better. +1 to you.
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