The Processor ID Utility and the CPU-Z Utility use different speed measurement algorithms and methodologies. CPU-Z is designed to show you what your system is doing in real-time. Processor ID is designed to help catch fraudulent product. In order to do this, the Processor ID Utility runs the system at full speed while gathering system data. Advanced power saving modes can prevent the system from reaching full speed, resulting in unexpected speed results.
Intel Customer Support
*Other names and brands may be claimed as the property of others.