NicSpeed - Check your network interface speed

NU2 TIP: Click here to Fix Windows Errors & Optimize Windows Performance

Created: Mar 15, 2006
Updated: Apr 6, 2006

Quick start

Select the adapter you want to test at "Adapter:".
And hit the [Start] button. Within a few seconds you see the result.

Here is a sample:

Adapter: Broadcom NetXtreme Gigabit Ethernet - Packet Scheduler Miniport
Hardware address: 00-0F-FE-37-59-2F
Target address: 192.168.3.105
Starting send/receive to/from network speed test (ICMP)
6669 packets, 13.6MByte total.
Sending took 2062 miliseconds.
Data transfer to/from network is 6.7MByte (53.9MBit) per second.
Starting maximum sending speed test (UDP)
22572 packets, 22MByte total.
Sending took 2031 miliseconds.
Sending speed is 11.1MByte (88.9MBit) per second.

Notice the following:

the data transfer to/from network speed, this is the speed at which your network adapter is communicating with a system in your local network specified by "target address".
the sending speed, this is the maximum speed at which your network adapter can send data to the network (without checking if received OK).