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
2241
70
3,731.8
1,597.4
NA
2242
63
4,341.8
2,192.3
NA
2243
58
3,440.9
1,491.6
NA
2244
64
4,498.0
2,793.8
NA
2245
60
5,082.2
2,381.6
NA
2246
57
4,532.8
2,141.2
NA
2247
50
5,087.8
2,331.1
NA
2248
56
4,854.6
2,075.9
NA
2249
60
5,172.8
2,885.3
NA
2250
71
3,283.7
2,526.5
NA
2251
67
2,863.8
2,062.7
NA
2252
87
3,008.8
2,026.3
NA
2253
90
3,030.3
2,315.5
NA
2254
67
3,322.5
2,240.3
NA
2255
93
3,029.3
2,841.9
NA
2256
100
3,300.0
3,159.8
NA
2257
44
14,740.4
8,883.4
NA
2258
60
3,570.4
1,571.4
NA
2259
77
3,099.1
1,971.3
NA
2260
53
3,302.9
2,527.2
NA
SK Hynix HYMP125S64CP8-Y5 2GB