2 Replies Latest reply on Oct 18, 2016 8:36 AM by kahless_uk

    Processor Says 8 Core, Windows Task Manager Says 4 Core

    iland

      I was just curious if there was some setting that was wrong.

       

      I noticed this when I opened my task manager the other day.processor.png

       

      The Max speed is correct. So it's not a huge issue, but just trying to optimize things.

       

      I see that it does say 8 Logical Processors, so I dunno if that's the same thing as a core in certain perspectives.

       

      Any thoughts?

        • Re: Processor Says 8 Core, Windows Task Manager Says 4 Core
          black_zion

          The FX-8350 has 4 Bulldozer Modules each composed of 2 integer and 1 floating point processor.

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          • Re: Processor Says 8 Core, Windows Task Manager Says 4 Core
            kahless_uk

            Windows treats FX CPUs as hyperthreaded CPUs so an eight core 8350 will read as 4 cores and 8 logical processors. Windows 8 and windows 10 thread schedule differently to windows 7 so treating an FX CPU as hyperthreaded with those OSes doesn't impact performance in the same way.

             

            Apparently windows does this to avoid scheduling too many floating point operations (even though each module has 2 Fuse Multiply Add units they technically operate as only one FPU shared between two Integer cores).

             

            You'll notice that if you change the graph in task manager to logical processors from overall it will show 8 separate graphs.

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