Aqui estão dois medidores de CPU gratuitos que parecem satisfazer suas necessidades:
For a busy IT professional, it is nearly impossible to diagnose, troubleshoot, and resolve every component affecting Windows Operating System (OS) performance using manual methods. Without a clear view of I/O and system activity, you learn of performance issues only after problems erupt.
With its unique graphical view of the Windows OS internals, Quest® Spotlight® on Windows empowers you to quickly identify and eliminate bottlenecks in the Windows environment. Displaying the real-time flow of data within your Windows OS, Spotlight enables you to quickly identify and resolve performance problems.
SysMetrix (última versão de 2006)
SysMetrix is a skinnable clock and metering application. Its purpose is to provide system metrics in a variety of interesting, useful, and cool ways. It can monitor and report on the hundreds of statistics.