We did a file transfer test today at work. We used a 100meg netgear switch and transferred a file from a workstation to a server.
The file was a 4.2gb iso. It took 6 minutes and 34 seconds to transfer. It was running at 11mb a second.
Right after that, we switched to the 1gb netgear switch and it took 9 minutes and 20 seconds to get the same file to the server. It was running at 9meg a second.
Both computers had a 1gig nic.
I would figure I would get faster speeds with the gigabit switch.