There are 10/100/1000 and gigabyte ethernet ports. Are there any differences between brands? Like if two different mobos came with 10/100 ethernet ports, would one perform faster? Would one of them allow for faster connections, or are they all the same? I ask because I get 65Mbps internet speed however, when downloading or streaming it averages at about 6Mbps. I was wondering if I built this badass rig to be bottle-necked by ethernet technology.