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
381
74
4,565.5
2,349.3
NA
382
52
4,837.1
2,027.0
NA
383
59
4,461.4
2,181.8
NA
384
70
4,653.6
3,079.3
NA
385
51
5,021.4
2,135.0
NA
386
59
4,264.3
2,031.4
NA
387
52
4,443.0
1,679.2
NA
388
60
4,846.8
2,477.3
NA
389
55
5,035.6
2,357.0
$29.99 USD (2022-01-30)
390
49
5,551.6
2,427.2
$53.2 USD (2014-03-16)
391
66
3,325.9
1,415.2
$13 USD (2022-03-17)
392
61
3,027.8
1,448.9
$44.02 USD (2014-04-11)
393
65
3,128.7
1,758.9
NA
394
65
3,576.8
1,569.9
$27.99 USD (2013-01-11)
395
68
2,786.8
1,334.9
$27.99 USD (2012-12-22)
396
72
3,381.8
1,591.9
NA
397
60
3,136.9
1,452.9
NA
398
81
3,416.9
1,470.1
$13.75 USD (2022-03-25)
399
57
3,998.1
1,680.7
NA
400
68
3,237.8
1,542.6
$29.87 USD (2013-06-27)
Crucial Technology CT25664AA800.M16FE 2GB