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
1721
51
5,199.6
2,350.5
NA
1722
45
4,504.2
1,924.8
NA
1723
53
5,335.2
2,465.1
NA
1724
63
5,470.0
3,092.6
NA
1725
66
5,201.6
3,658.9
NA
1726
61
5,763.9
3,742.7
NA
1727
52
4,850.6
2,368.8
NA
1728
57
5,591.5
3,292.9
NA
1729
59
4,402.5
1,512.2
NA
1730
54
4,447.5
2,124.1
NA
1731
53
4,854.8
2,018.4
NA
1732
69
3,409.1
1,732.1
NA
1733
48
5,545.5
2,536.1
NA
1734
56
6,064.4
3,050.6
NA
1735
44
5,916.1
1,585.1
NA
1736
44
5,770.6
2,452.6
NA
1737
41
6,403.5
2,773.7
NA
1738
49
6,227.8
3,150.3
NA
1739
52
5,062.7
2,376.9
NA
1740
50
5,387.4
2,476.2
NA
OCZ OCZ2P8008GQ 2GB