How To Tell If a CPU Supports Virtualization
For Intel CPUs, intel.com gives two solutions:
Solution 1:
Follow the steps below:
Identify your Intel® Processor, or the processor you need to find the information for.
Visit the product specification page.
Enter the Intel processor number in the Search Intel.com field located upper-right corner.
Click the processor's link on the search results page.
Once you are on the processor specification page, click Specifications section.
Click Security & Reliability.
Look up all the Intel® Virtualization fields.
Here is an example.

Solution 2:
You can use the Intel® Processor Identification Utility to verify if your system is capable of Intel® Virtualization Technology.
Using the tool, Select the CPU Technologies tab. See if the Intel® Virtualization Technology options are checked or not.
Here is an example to show that the Intel® Virtualization is available.

Here is an example to show that the Intel® Virtualization is not available.
