It was a gift...just was wandering if it was better than the onboard
Not really, you won't see any perceptible improvement in game response times. You can try it, but you aren't going to make the internets any faster. Essentially all they do is prioritize UDP traffic going out of your network card and only between your router port and your NIC. Once the traffic hits the internets (where most of the delay and packet loss occurs) things return to normal. So it improves the least likely point on your network to have any problem in the first place. Sorta like making plugging a leak that doesn't exist yet while the rest of the plumbing is spewing water like crazy.
If all you are doing is runnign a game then there isn't any contention for priority. So, unless you are downloading torrents, FTPing some p0rn and watching youtube at the same time, from the same machine then there probably won't be any noticeable improvement in your gameplay since there isn't any contention on the wire to begin with.