~ Intel® Processor Identification Utility Download for Windows
Intel® Processor Identification Utility is designed to identify current Intel® Processors and technologies, and it enables you to run and save a processor ID report. The utility also features a frequency test to make sure that the processor is working at the rated speed.
This video walks you through how to download and install the application. It also provides an overview of the most common technologies supported by the processor.
Alternatively, you can check it with Coreinfo.