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
1542
58
3,347.0
1,358.2
NA
1543
53
4,144.8
1,902.7
NA
1544
59
3,237.0
1,612.6
NA
1545
59
3,696.0
1,831.9
NA
1546
61
3,835.2
2,077.3
NA
1547
63
3,337.5
1,422.2
NA
1548
51
4,694.4
1,948.3
NA
1549
50
4,117.7
1,664.1
NA
1550
52
4,662.4
2,387.1
NA
1551
51
3,928.8
1,653.2
NA
1552
71
3,244.6
1,289.4
NA
1553
50
2,937.7
1,752.9
NA
1554
37
6,606.5
2,746.8
NA
1555
55
3,140.1
1,018.0
NA
1556
63
3,900.0
2,135.0
NA
1557
57
3,880.9
2,032.1
NA
1558
69
2,373.8
1,329.8
NA
1559
62
3,757.7
1,698.0
NA
1560
72
3,226.1
1,460.8
NA
Nanya Technology M2U51264TU88A2B-37 512MB