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
2021
56
4,003.0
1,761.9
NA
2022
69
4,217.2
1,857.7
NA
2023
55
4,048.5
1,720.8
NA
2024
54
4,419.9
1,926.6
NA
2025
53
4,372.1
1,964.0
NA
2026
40
4,676.2
2,235.2
NA
2027
50
3,478.3
1,718.1
NA
2028
54
3,255.0
1,603.1
NA
2029
61
3,396.8
1,691.3
NA
2030
43
4,871.1
2,088.5
NA
2031
61
3,224.8
1,454.4
NA
2032
59
4,420.4
2,087.1
NA
2033
56
4,086.5
1,760.2
NA
2034
58
4,241.0
1,950.7
NA
2035
70
3,174.9
1,672.9
NA
2036
57
3,779.2
1,956.1
NA
2037
46
2,909.8
1,519.2
NA
2039
47
3,677.0
1,794.7
NA
2040
49
3,158.3
1,740.4
NA
Samsung M3 78T2863QZS-CE6 1GB