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
301
54
5,269.1
2,820.0
NA
302
47
5,848.9
2,531.1
NA
303
51
5,725.1
2,539.3
NA
304
46
5,530.1
2,226.4
NA
305
46
6,207.6
2,619.1
NA
306
46
6,235.2
2,707.8
NA
307
46
6,260.8
3,008.7
NA
308
60
3,241.9
1,700.3
$9.37 USD (2019-03-31)
309
70
3,932.8
1,627.8
$6.99 USD (2019-02-20)
310
47
4,680.7
1,361.1
NA
311
86
1,761.9
895.9
$13.99 USD (2017-04-22)
312
78
2,330.7
1,177.9
$13.99 USD (2017-04-22)
313
82
1,974.1
1,319.3
$19.99 USD (2015-04-29)
314
59
4,508.2
2,077.9
$22.99 USD (2017-05-22)
315
64
4,655.7
2,660.4
$99.49 USD (2019-05-15)
316
63
4,120.4
1,686.9
$36.99 USD (2019-05-14)
317
63
3,804.1
1,757.5
$114.99 USD (2019-01-04)
318
61
4,370.3
1,756.1
$149.95 USD (2019-05-29)
319
58
3,187.5
1,343.5
NA
320
57
3,387.2
1,576.1
NA
Corsair CM2X2048-8500C5C 2GB