Don't get too hung up on it - you'll never actually get more than about 20mb/s downstream, 8mb/s upstream, regardless of what speedtests say. I don't. I'm not sure exactly why, but they seem to be universal limits. I'd never actually get 80mb/s downstream - even if I could, my drives can't write that fast, so it wouldn't be sustainable once I ran short of RAM. 20 and 8 seem to be immutable universal limits on internet transfers. Unless anyone's actually managed to saturate their theoretically immense bandwidths? If so, how?