CPU core counts

These self-contained code samples show you how to correctly detect physical and logical processor core counts.

Supported operating systems

• Windows XP
• Windows 7
• Windows 10

Support and suggestions

If you spot a bug, or would like to see the samples evolve in a particular way, file an issue and we'll take a look!

Further reading

• Ken Mitchell (2017). CPU Core Count Detection on Windows®. GPUOpen.
• Ken Mitchell, Elliot Kim (2018). AMD Ryzen™ CPU Optimization. Presented on GDC 2018.