As i did not find a MySQL Server Benchmark for a Client running under Windows, i wrote one by myself. As i used Visual Studio 2005, you will need NET Framework 2.0 to run it. App Language is German (only).
Great little project! No installer - runs out of the box, just needs some basic connection infos. Only thing that is missing for me is also a transactions per second test. And possibly a "force innodb" mode, but maybe that is picked up from the selected database in the connection info already.