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
2001
51
5,366.8
2,125.7
NA
2002
70
4,318.9
2,924.1
NA
2003
66
3,057.8
2,026.3
NA
2004
75
4,077.1
2,937.7
NA
2005
70
4,740.9
3,161.1
NA
2006
58
3,402.0
2,538.0
NA
2007
67
4,680.9
3,281.0
NA
2008
82
3,649.0
2,469.5
NA
2009
86
4,311.5
2,562.4
NA
2010
57
4,150.1
1,462.8
NA
2011
51
4,953.0
2,357.4
NA
2012
77
1,923.1
1,477.2
NA
2013
42
2,751.3
1,308.4
NA
2014
78
4,485.6
3,010.1
NA
2015
52
4,344.3
1,835.9
NA
2016
46
4,335.0
1,793.7
NA
2017
61
3,734.9
1,728.0
NA
2018
55
4,360.3
1,772.8
NA
2019
52
3,690.2
1,598.1
NA
2020
59
4,833.8
2,123.3
NA
Samsung 16HTF25664HY-667E1 4GB