What ram is better!

[Itanda]

http://www.canadacomputers.com/index.php?do=ShowProduct&cmd=pd&pid=018216&cid=RAM.346.754

or


The ram that is in this PC

http://www.gateway.com/systems/product/529668208.php

I know the other one is 6gb but wouldn't the top ram overpower it with it's mhz?

 

[AjsGuns]

The first one is better RAM.