DDR2 内存模块
与DDR相比，DDR2将数据传输速率提高了2倍。它在PCB上有240个引脚（每侧120个）。消费为1.8V。时钟频率从400 MHz到800 MHz不等。 DDR2存储器的最大频率为1000 MHz。
№
Memory name
Latency (ns)
Read (MB/s)
Write (MB/s)
Price
1661
72
2,616.5
1,323.5
NA
1662
84
1,872.6
1,317.3
NA
1663
56
3,101.1
1,465.8
NA
1664
49
4,105.5
1,830.8
NA
1665
48
4,798.5
2,142.3
NA
1666
117
2,669.5
2,019.3
NA
1667
80
2,547.4
1,995.7
NA
1668
63
2,995.6
2,287.5
NA
1669
62
3,958.0
1,488.8
NA
1670
98
1,899.1
1,192.2
NA
1671
57
3,846.1
1,681.6
NA
1672
60
3,744.8
1,496.7
NA
1673
84
2,192.0
1,538.9
NA
1674
49
4,406.9
1,807.4
NA
1675
54
4,300.6
1,840.7
NA
1676
47
3,350.3
1,507.8
NA
1677
87
1,904.7
1,078.3
NA
1678
49
5,071.1
2,208.0
NA
1679
69
4,218.3
2,205.8
NA
1680
46
5,461.1
2,633.7
NA
Nanya Technology NT512T64UH8B0FN-3C 512MB 
Netlist N*D1G7A2250BFD53I2 8GB 
OCZ OCZ2A8001G 1GB