Realistic File / Network Transfer Speeds


I don’t know about you, but I hate reading boxes with their “theorical” max speeds. Here are real tested transfer speeds using win7 as a test program of various file transfer speeds. The list will be ongoing. Please feel free to leave comments and I’ll add it to this list.

Read Speeds
90MB/sec SATA SSD OCZ SATA Solid 3 SSD  (rated read 500MB/s | write 450B/s)
50MB/sec Windows 2003 Server via 1000mbps ethernet
40MB/sec SATA Hard Drive
20MB/sec USB 2.0 Hard Drive Seagate FreeAgent Desktop
15MB/sec USB Flash Drive Kingston DataTraveler
12MB/sec NAS via 100mbps ethernet Iomega 2TB Home Media Network NAS #34571
12MB/sec Windows 2003 Server via 100mbps ethernet
2MB/sec USB Flash Drive Cheap Giveaway
1MB/sec NAS via 70mbps Wireless N Iomega 2TB Home Media Network NAS #34571
Write Speeds
90MB/sec SATA SSD OCZ SATA Solid 3 SSD  (rated read 500MB/s | write 450B/s)
65MB/sec Windows 2003 Server via 1000mbps ethernet
40MB/sec SATA Hard Drive
20MB/sec USB 2.0 Hard Drive Seagate FreeAgent Desktop
11.5MB/sec Windows 2003 Server via 100mbps ethernet
7MB/sec NAS via 100mbps ethernet Iomega 2TB Home Media Network NAS #34571
5MB/sec USB Flash Drive Kingston DataTraveler
2MB/sec USB Flash Drive Cheap Giveaway
0.2MB/sec NAS via 70mbps Wireless N Iomega 2TB Home Media Network NAS #34571
Why didn’t you use a test program to read/write the data?

I used windows 7 file transfer for one simple reason. Windows isn’t getting the max IO out when you use your computer, so why test it with a program that is designed to get the max IO. At the end of the day, you want to see how fast your files transfer by the program that you use everyday. Not what a test program can try to squeeze out of your IO. While its not the most scientific method, it does provide a more realistic environment to how fast everything is.


I'm a 29 year old UIUC Computer Engineer building mobile apps, websites and hardware integrations with an interest in 3D printing, biotechnology and Arduinos.

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