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
681
60
3,947.1
1,672.4
NA
682
58
4,157.4
1,935.1
NA
683
50
4,796.6
2,053.4
NA
684
54
4,412.4
2,162.6
NA
685
56
4,680.1
2,169.5
NA
686
49
4,723.9
1,880.9
NA
687
48
5,347.9
2,374.7
NA
688
49
4,879.6
2,120.4
NA
689
93
2,869.0
1,995.3
NA
690
93
3,193.6
2,312.7
NA
691
87
2,878.6
2,026.8
NA
692
68
2,784.7
2,024.4
NA
693
92
3,154.3
2,549.7
NA
694
80
3,661.8
4,127.7
NA
695
67
1,866.1
1,071.3
NA
696
62
3,750.7
1,773.1
NA
697
52
4,672.5
2,018.5
NA
698
61
3,607.7
1,516.5
NA
699
94
1,729.5
1,829.7
NA
700
107
2,806.1
2,225.4
NA
Hynix Semiconductor (Hyundai Electronics) HYMP125S64CR8-S6 2GB