To determine the number of CCDs in a CPU, you can use various methods, including:
Manufacturer Specifications: The manufacturer of the CPU, in this case, AMD, should provide specifications that indicate the number of CCDs in a particular model.
CPUID instructions: You can use the CPUID instruction to read the processor information, including the number of cores, threads, and cache size. However, the CPUID instruction does not directly provide information about the number of CCDs.
In the case of AMD Genoa processors, the number of CCDs is not directly accessible via CPUID instruction. However, you can use other CPUID information to infer the number of CCDs indirectly. For example, you can check the "Core Complex ID" (CCX ID) information provided by the CPUID instruction, which identifies the particular CCX within a CCD.
In summary, while it's not possible to directly read the number of CCDs from the CPUID instruction, you can use other information such as the CCX ID to infer the number of CCDs. Alternatively, you can refer to the manufacturer's specifications to determine the number of CCDs in a particular CPU model.
PC Hardware Specialist
