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
2121
71
2,585.1
1,153.1
NA
2122
78
2,841.2
1,294.3
NA
2123
86
1,873.2
832.5
NA
2124
73
3,510.5
1,423.3
NA
2125
92
1,531.1
421.9
NA
2126
84
2,475.6
1,041.8
NA
2127
60
1,882.4
732.9
NA
2128
59
2,554.0
1,209.8
NA
2129
53
4,479.6
1,810.7
NA
2130
62
4,311.6
1,810.1
NA
2131
69
3,325.1
1,441.2
NA
2132
66
1,341.7
1,351.3
NA
2133
78
3,148.8
1,545.6
NA
2134
68
4,819.6
3,450.1
NA
2135
66
4,323.0
1,906.1
NA
2136
68
3,000.1
1,464.4
NA
2137
46
5,243.1
2,264.2
NA
2138
68
3,886.6
1,702.6
NA
2139
64
4,477.7
1,869.1
NA
2140
63
3,662.0
1,540.4
NA