|It's worth noting that in most cases, you'll only get about 85% or so of your rated bandwidth. A certain amount of your bandwidth is always going to be used up in overhead. 93 Mbps out of rated 120 is about what you can expect so I wouldn't worry that you're not getting what you're paying for. You are.|
As to what your network interface itself is capable of, just check the device properties in Device Manager or in the property sheet for the network interface itself. Most modern NIC's are gigabit (1000 Mbps). Here's the NIC info on the computer I'm sitting at right now:
Start >> Control Panel >> Device Manager >> Network Adapters >> Intel(R) 82567LM-3 Gigabit Network Connection
As for the wifi adapter, it should be set automatically to connect at the best possible rate. As is the wired interface. Again, the amount of usable bandwidth as versus the rated amount will not be identical for the same reason I listed above for the wired network interface. However, with wireless, you're going to get even less because of wifi's inherent issues with lag, latency and performance that you do not encounter with a wired connection.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.