Coreinfo

Name: Coreinfo
Author: Microsoft Sysinternals

A Sysinternals utility that maps logical processors to physical cores, NUMA nodes, sockets and caches.

By Microsoft Sysinternals

FreeProprietaryWindows Command line

Official websitelearn.microsoft.com

Download pagedownload.sysinternals.com

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About Coreinfo

Coreinfo shows how the logical processors in a Windows machine map to physical cores, NUMA nodes and sockets, and which caches each logical processor uses. The command-line versions (Coreinfo, Coreinfo64, Coreinfo64a) print the mapping as rows of asterisks. The CoreInfoEx graphical version adds views for cores, NUMA nodes, sockets, CPU features, NUMA memory access costs and core-to-core distances.

It also lists supported instruction sets and virtualization features, and on hybrid CPUs it tells performance cores apart from efficiency cores. It suits developers and administrators who are tuning thread placement or checking what a processor supports.

Strengths

Shows the mapping of logical processors to cores, NUMA nodes, sockets and caches
Both command-line and graphical versions in one download
Heat maps of NUMA memory access costs and core-to-core distances
Identifies P-cores and E-cores on hybrid processors

Limitations

Windows only
Virtualization features can be misreported when a hypervisor is running or inside a virtual machine
Some information needs administrative privileges

Details

Pricing: FreeFree download from Microsoft Sysinternals.
License: Proprietary
Developer: Microsoft Sysinternals
Platforms: Windows, Command line
How it runs: Downloadable app
Account: Not required
Works offline: Yes
Best suited for: Developers and administrators who need to inspect CPU topology and features on Windows
Categories: System monitoring, Developer tools
Last verified: October 8, 2026
Added: October 8, 2026
Sources: learn.microsoft.com/en-us/sysinternals/downloads/coreinfo

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