2 Replies Latest reply on Aug 21, 2017 10:32 AM by Intel Corporation

    PID versus SIU CPU Speed Differential


      Hello I have an i7-3970X clocked to 4.0 GHz (multiplier x40) shows correctly in PID as CPU Speed 4.0 GHz but shows CPU Speed 5.6 GHz in  System Identification Utility Reference Number: 0394 9375.  Note I get a similar differential issue with 3DMark Time Spy which shows a "Reported stock core clock" of 5.6 GHz while reporting a "Maximum turbo core clock" of 4.0 GHz.  Note MB is at 100 MHz.


      I'd like understand why the 5.6 GHz number is being generated.  Please advise, thanks