MacCPUID
MacCPUID is a free system utility from Intel that displays detailed information about Intel processors in a Mac. It reveals processor model numbers, codenames, cache sizes, clock speeds, and microarchitecture details that are useful for developers, system administrators, and power users troubleshooting hardware compatibility or verifying CPU specifications. The tool was commonly used to identify which Intel architecture generation (Ivy Bridge, Haswell, Broadwell, etc.) was installed in Intel-based Macs.
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1 suggestionMacCPUID is an Intel-specific utility designed to read and report information about Intel processors, and Intel has discontinued its development — there is no native Apple Silicon version and there will not be one, since Apple Silicon Macs do not run Intel processors. The utility will stop launching entirely when Apple removes Rosetta 2 in macOS 28 (September 2028). If you are running a Mac with Apple Silicon (M1, M2, M3, M4, etc.) today, you should use the built-in tools instead: open System Report (Apple menu → About This Mac → System Report), which shows complete processor and hardware details natively. For Intel Macs that are still in use, MacCPUID continues to work under Rosetta 2, but you should plan to migrate to system-native tools like Activity Monitor or the terminal command `sysctl -n machdep.cpu.brand_string` before September 2028. There is no direct replacement for MacCPUID on Apple Silicon Macs because the underlying processor architecture is fundamentally different.
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