im running 10 megs with a netgear N 300 wireless wnr 2000x3 router, now i have a gaming rig 12g ram 7970 phenom x6 does any of that even matter....
This router is a perfect example of the issue of port limitation.
All the ethernet ports can only run 100m maximum but it can run 300m wireless. Not going to work real well if a wireless PC running at 300m tries to push 300m of data though a 100m connection.
The reason it works is because 300m is a lie that you only get in a lab.
Almost any ethernet cable you could find will run to 100m which is the maximum your router can do. Even if you had a better router than could do 1G almost any ethernet cable will work fine.
I am assuming you are running at 10m because you have a modem that is limited to 10m before your router. Which most likely doesn't matter since even if you replace the modem then you have the wires that go to the ISP that are more lan likely limited in speed.
Best example I can give is say you have a small car that can run 100mph maximum. If you take it to a high speed race track will it run any faster than on a highway...assuming the cops don't get you. This is why you must be very careful about network speed calculation. The slowest device/cable in the path set the speed no matter how good the other parts are.