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
1521
51
4,648.3
1,878.2
NA
1522
52
5,162.9
2,391.8
NA
1523
111
2,597.4
2,064.6
NA
1525
66
3,170.8
1,028.0
NA
1526
68
2,938.4
1,361.6
NA
1527
120
1,582.0
582.1
NA
1528
92
2,105.4
1,266.1
NA
1529
70
2,089.5
1,551.1
NA
1530
52
3,958.3
1,387.6
NA
1531
62
2,515.9
1,726.5
NA
1532
76
2,994.4
1,273.3
NA
1533
62
3,624.0
1,670.9
NA
1534
62
2,292.5
1,034.8
NA
1535
53
4,526.9
1,877.4
NA
1536
64
3,272.5
1,580.9
NA
1537
67
3,476.6
1,209.6
NA
1538
47
4,157.5
1,955.6
NA
1539
54
3,067.2
1,484.5
NA
1540
45
3,764.7
1,808.0
NA
Mushkin 996640 2GB 
Nanya Technology HYS72T512420EFD-3s 4GB