I also use FTP to test the speed since windows file sharing is somewhat sluggish.
Is there really any speed difference between a standard 100 Mb/s LAN and a Gigabit LAN? Since I am fortunate enough to have just installed a Linksys WRT350N Gb router, I tested it. Connected to the router are an IBM ThinkCentre with Gb on board NIC, a home built with a PCI Gb NIC, and an IBM R-40 laptop with a 10/100 on board NIC.
Single file transferred - 690 MB movie.
Speed over the 100 Mb - 1 minute 45 seconds
Speed over the Gb - 50 seconds (this should have been under one second)
Yep, it's faster, but neither approach their advertised speeds. Naturally.
Thinkcentre - 3 GHz P-4 HT, Seagate 7200 RPM 80 Gig HD perpendicular recording, 1 Gig RAM.
Home built - 2 GHZ AMD, Maxtor 7200 RPM 60 Gig HD, 1 Gig RAM.
IBM R-40 laptop - 2.2 GHz P-3 moble, 40 Gig HD, 1 Gig RAM.