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
281
53
3,577.9
1,852.9
NA
282
60
2,881.0
1,501.9
NA
283
47
5,158.1
2,067.9
NA
284
51
4,470.0
1,567.0
NA
285
62
3,621.6
1,887.0
$46.55 USD (2014-12-31)
286
40
5,547.2
2,400.5
NA
287
54
4,715.6
2,254.8
$14.99 USD (2019-01-04)
288
37
6,172.7
2,354.0
NA
289
54
4,967.4
1,973.5
NA
290
51
4,533.4
1,985.7
NA
291
49
4,931.3
2,182.9
NA
292
57
3,940.2
1,960.1
NA
293
52
4,609.7
2,051.8
NA
294
43
5,670.6
2,405.6
NA
295
48
4,295.1
2,034.7
NA
296
52
5,099.1
2,198.7
NA
297
48
4,799.7
1,912.7
NA
298
53
5,481.3
2,549.9
$18.99 USD (2019-03-22)
299
51
5,210.7
2,332.9
NA
300
58
5,382.3
3,338.9
NA
Corsair CM2X512-5400C4 512MB