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220-801 · Question #1141

A customer wants a computer for performing a single-threaded task as quickly as possible. Which of the following CPU characteristics is the MOST important?

The correct answer is A. Clock speed. Single-threaded tasks execute instructions sequentially on one core, so the speed at which that core processes instructions - the clock speed (measured in GHz) - is the primary factor. A higher clock speed means more instruction cycles per second, directly speeding up…

Hardware

Question

A customer wants a computer for performing a single-threaded task as quickly as possible. Which of the following CPU characteristics is the MOST important?

Options

  • AClock speed
  • BHyperthreading
  • CFan speed
  • DNumber of cores

How the community answered

(55 responses)
  • A
    87% (48)
  • B
    7% (4)
  • C
    2% (1)
  • D
    4% (2)

Explanation

Single-threaded tasks execute instructions sequentially on one core, so the speed at which that core processes instructions - the clock speed (measured in GHz) - is the primary factor. A higher clock speed means more instruction cycles per second, directly speeding up single-threaded workloads. Hyperthreading and additional cores help with parallel/multi-threaded workloads but provide no benefit when only one thread is in use. Fan speed affects cooling, not processing performance.

Topics

#clock speed#single-threaded performance#CPU selection#processor characteristics

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