RB750GL vs. RB450G

Hello,

I have actually a RB750GL device at home with a 100/10mbps cablemodem internet connection.

I have a old RB450G that could use, so my question is:

  1. Is RB450G better that RB750GL?
  2. Ehat about Fasttrack? The documentation say that RB450G does not support it.

Which device could you use?

I will appreciate your help.

Best regards.