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
1901
47
4,286.2
1,814.6
NA
1902
64
2,726.7
1,017.5
NA
1903
63
4,289.8
1,822.0
NA
1904
54
4,438.8
2,040.2
NA
1905
59
3,542.3
1,542.3
NA
1906
61
3,642.4
1,624.1
NA
1907
59
4,468.8
2,013.8
NA
1908
50
4,440.3
1,968.2
NA
1909
59
4,652.0
2,246.7
NA
1910
43
6,140.5
2,837.5
NA
1911
81
2,677.0
1,361.0
NA
1913
52
5,031.1
2,008.2
NA
1914
63
4,156.3
1,702.1
NA
1915
64
3,821.1
1,694.8
NA
1916
107
3,259.1
1,605.5
NA
1917
62
3,278.9
2,434.2
NA
1918
81
4,200.9
3,044.0
NA
1919
52
4,691.8
2,326.6
NA
1920
69
3,323.6
2,144.7
NA
Qimonda 64T128820HU3SB 1GB