I C U ID is a library that provides a C interface for the CPUID opcode and provides:

• Vendor Name e.g. "GenuineIntel"
• Brand String e.g. "Intel(R) Xeon(R) CPU E5-2630L v2 @ 2.40GHz"
• CPU Codename e.g. "Haswell"
• Get information such as: number of cores or logical cores, cache sizes, etc.
• Get information such as: if the cpu supports AVX, 3DNow!, SSE3, AES-NI, etc.
• Get physical or virtual address sizes
• Get a lot of other info not listed here
• Liberally licensed under the ISC License

• OS's: Windows, Linux and Mac OS X
• Architectures: x86_64 (64-bit), i386 (32-bit)
• Compilers: GCC, Clang, and Microsoft Visual C++

Source: Github

I don't provide binaries yet, I may provide binaries for Windows in the future. But you can build them yourself, instructions here.

You can report bugs at the Github issue tracker here. For issues pertaining to retrieving info please attach the rawcpuid.txt file output from the following command:

build/tool/icuid_tool --dump rawcpuid.txt

See the doxygen generated documentation.

libicuid is licensed under the ISC License. (view it here)