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
2462
87
2,331.6
1,330.3
NA
2463
52
3,401.5
1,408.7
NA
2464
60
2,778.4
1,124.8
NA
2465
59
3,495.7
1,600.7
NA
2466
45
3,924.0
2,260.8
NA
2467
60
3,672.3
1,597.9
NA
2468
59
3,764.0
1,755.2
NA
2469
65
2,938.8
1,266.7
NA
2470
73
2,542.4
1,295.0
NA
2471
65
3,468.5
1,486.6
NA
2472
54
4,133.7
1,793.5
NA
2473
58
3,996.0
2,007.5
NA
2474
60
3,912.9
1,848.5
NA
2475
62
4,489.4
2,540.3
NA
2476
58
3,588.6
1,527.0
NA
2477
60
4,608.5
1,925.0
NA
2479
52
3,342.0
2,561.2
NA
2480
43
5,204.9
2,090.1
NA
Transcend Information JM467Q643A-6 512MB