SELECT( cpu_count / hyperthread_ratio ) AS NumberOfPhysicalCPUs,
CASE
WHEN hyperthread_ratio = cpu_count
THEN cpu_count
ELSE(( cpu_count – hyperthread_ratio ) / ( cpu_count / hyperthread_ratio ))
END AS NumberOfCoresInEachCPU,
CASE
WHEN hyperthread_ratio = cpu_count
THEN cpu_count
ELSE( cpu_count / hyperthread_ratio ) * (( cpu_count – hyperthread_ratio ) / ( cpu_count / hyperthread_ratio ))
END AS TotalNumberOfCores,
cpu_count AS NumberOfLogicalCPUs
FROM sys.dm_os_sys_info;