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
1881
66
3,752.8
2,021.2
NA
1882
63
3,884.3
1,680.0
NA
1883
79
3,061.8
1,468.1
NA
1884
67
1,300.5
1,074.4
NA
1886
61
4,590.5
1,922.1
NA
1887
92
2,880.0
1,875.1
NA
1888
56
3,839.8
1,686.4
NA
1889
59
3,541.9
1,622.5
NA
1890
49
5,306.1
1,255.7
NA
1891
48
4,564.0
2,090.1
NA
1892
73
2,482.4
1,267.1
NA
1893
64
3,138.5
1,643.2
NA
1894
59
3,244.5
1,756.9
NA
1895
58
3,690.8
1,795.7
NA
1896
65
2,678.6
1,990.1
NA
1897
54
3,670.0
1,573.5
NA
1898
68
2,920.8
1,409.7
NA
1899
69
2,513.0
1,265.2
NA
1900
73
3,075.1
1,381.2
NA
Qimonda 64T128000EU2.5C2 1GB