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Disable Virtual Cores (E Cores / Hyperthreading)

Virtual cores, also known as hyperthreads or logical cores, are a feature found in modern CPUs (Central Processing Units) that allow a single physical CPU core to handle multiple threads simultaneously. Each virtual core appears as an additional processing unit to the operating system, even though it shares the resources of a physical core.

This causes performance issues for most games because it splits one CPU into two.

  1. Access BIOS/UEFI Settings:

    • Restart your computer.
    • During the boot process, press the key to enter BIOS/UEFI settings (commonly Del, F2, F10, or F12).
  2. Navigate to CPU Settings:

    • Look for options like Advanced, Advanced CPU Configuration, or something similar.
    • Find the setting related to CPU or processor configuration.
  3. Disable Hyper-Threading/Virtual Cores:

    • Locate the option for Hyper-Threading or similar (the terminology varies by manufacturer).
    • Disable it.
  4. Save and Exit:

    • Save the changes.
    • Exit the BIOS/UEFI and let your system reboot.

 

To confirm, open Task Manager -> Performance Tab -> CPU and make sure "Cores" and "Logical Processors" are the same number.

 

 

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