SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/tech-hyperthreading-logical-cores

With Intel Hyper-Threading on, how does one physical core appear to the operating system?

As two logical processors that can run two threads.

Start playing free

  1. As half a processor
  2. As two logical processors ✔
  3. As four logical processors

Why: Hyper-Threading is Intel's name for simultaneous multithreading. Each physical core exposes two execution contexts and can work on two software threads. Two logical processors still share one core's execution resources.

Huh, didn't know that: An 8-core processor with Hyper-Threading active on every core exposes 16 logical processors.

The dad joke
Why did the core start Hyper-Threading? It wanted to be in two places at once.
Like this card?
Play the game

References

Answer: As two logical processors. Hyper-Threading is Intel's name for simultaneous multithreading. Each physical core exposes two execution contexts and can work on two software threads. Two logical processors still share one core's execution resources.

  1. Intel: What Is Hyper-Threading? www.intel.com/content/www/us/en/gaming/resources/hyper-threading.html
    When Intel® Hyper-Threading Technology is active, the CPU exposes two execution contexts per physical core.
    Checked 2026-10-10.
  2. OpenStax Introduction to Computer Science 5.6: Processor Architectures openstax.org/books/introduction-computer-science/pages/5-6-processor-architectures
    This is called simultaneous multithreading (SMT) , which Intel calls hyperthreading technology.
    Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

Tech & GadgetsAround 2004, why did chipmakers shift from faster clocks toward multicore processors?Tech & GadgetsA phone chip mixes fast, power-hungry cores with slow, efficient ones. What is that design called?Tech & GadgetsCompared with a CPU, what does a GPU spend more of its transistors on?

That's stuff everyone should know.