Query to find SQL Server CPU utilization 2012. This query will help you to find the CPU utilization of server and SQL. If like to know the steps to bring down the SQL Server CPU utilization follow http://mssqlwiki.com/2012/10/04/troubleshooting-sql-server-high-cpu-usage/

 	
	declare @ms_now bigint
	select @ms_now = ms_ticks from sys.dm_os_sys_info;
select top 15 record_id,
		dateadd(ms, -1 * (@ms_now - [timestamp]), GetDate()) as EventTime, 
		SQLProcessUtilization,
		SystemIdle,
		100 - SystemIdle - SQLProcessUtilization as OtherProcessUtilization
	from (
		select 
			record.value('(./Record/@id)[1]', 'int') as record_id,
			record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') as SystemIdle,
			record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') as SQLProcessUtilization,
			timestamp
		from (
			select timestamp, convert(xml, record) as record 
			from sys.dm_os_ring_buffers 
			where ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR'
			and record like '%<SystemHealth>%') as x
		) as y 
	order by record_id desc