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
1921
123
2,689.1
1,916.2
NA
1922
58
2,770.6
1,336.8
NA
1923
51
3,895.3
1,455.0
NA
1924
58
4,228.1
2,009.8
NA
1925
84
2,604.3
1,689.2
NA
1926
52
4,221.9
1,739.6
NA
1927
117
1,315.5
899.7
NA
1928
106
3,273.7
2,069.2
NA
1929
97
3,323.3
1,835.6
NA
1930
67
2,575.8
1,839.9
NA
1931
111
2,810.4
1,748.9
NA
1932
96
3,117.5
1,907.4
NA
1933
91
3,169.4
1,979.1
NA
1934
106
3,353.0
2,092.2
NA
1935
51
4,938.6
2,069.6
NA
1936
69
2,920.7
1,858.9
NA
1937
47
5,001.1
1,740.8
NA
1938
112
2,994.9
1,808.9
NA
1939
109
3,211.5
2,505.9
NA
1940
144
2,946.9
2,751.3
NA
Qimonda 72T128000HP3SB 1GB