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
1321
54
3,918.8
1,628.6
NA
1322
79
2,495.1
1,404.3
NA
1323
68
4,436.0
2,745.9
NA
1324
103
3,135.3
1,572.0
NA
1325
58
3,265.3
1,907.0
NA
1326
65
3,319.2
1,603.7
NA
1327
52
3,705.4
1,354.1
NA
1328
52
5,102.4
2,059.8
NA
1329
50
5,425.1
2,241.1
NA
1330
53
3,217.1
2,580.7
NA
1331
86
4,291.4
2,685.4
NA
1332
53
3,111.8
1,318.1
NA
1333
69
2,214.5
1,026.2
NA
1334
41
4,491.2
2,059.2
NA
1335
67
2,767.8
1,414.3
NA
1336
61
3,064.3
1,415.3
NA
1337
67
2,735.0
1,233.1
NA
1339
51
3,938.8
1,626.1
NA
1340
71
2,773.9
1,529.6
NA
Micron Technology 9HTF6472AY-667B3 512MB