Memory card

[milkyway_120306]

1. ddr3 1600
2. ddr3 1333
3 ddr3 1066

whats the difference of the ddr3's

 

[itzdanielp]

The speed they run at.

1066MHz
1333MHz
1600MHz

Generally it is best to get the fastest speed your processor will support natively, unless you are planning on overclocking. And even then there is a very small difference you will see.

Most modern processors run at 1600MHz by default, so that is the most popular speed to get.