gigbit router for home?

Hey all you network masterminds...

Would I notice an difference in a home setting using a COX cable modem if I
changed all my in home routers/hubs to 1000/100/10 routers?

OR

Are my current 10/100 routers faster enough for anything that I would get
via cable internet service currently.

The reason for my question is... I finally updated my six year old "G"
gateway to a new: Cisco DPC3825 DOCSIS 3.0 / "N" Gateway  : which has Four
1000/100/10BASE-T Ethernet connections.

I have noticed a marked improvement for the wireless devices... even tho I
had a "N" router set up in part of the house anyway.... Now I just need to
update one other device to "N"

:David



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