What is difference between ddr2 and ddr3

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More about what difference ddr2 ddr3
  1. DRAM Type || Transfer Rate(MT/s) || Voltage
    DDR  || 200–400  || 2.5/2.6
    DDR2 || 400–1066 || 1.8
    DDR3 || 800–2133 || 1.5

    even so DDR2 and DDR3 both have 240 Pins they cannot be exchanged since they have different Voltage keying.

    http://en.wikipedia.org/wiki/DDR_SDRAM
  2. This topic has been moved from the section Networking to section Motherboards & Memory by Grumpy9117
  3. just a newer standard, thats about it

    performance goes up but not really clock to clock like most ram as the latency is higher...
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