LANBench is a small LAN/TCP network performance tester. It can test network performance between two computers and is based on Winsock 2.2.

LANBench tests TCP performance only and is designed for minimal CPU usage so that the pure performance of your network could be fully tested.

LANBench Features:
1. Multiple connections - up to 20
2. Low CPU overhead for pure network performance test
3. Multithreaded utilizing Windows I/O completion port
4. Configurable packet size, test duration and transfer mode

The license of this software is Freeware, you can free download and free use this diagnostic software.