Personal computer CPU clock speeds range between

• A. 0.5-2 GHz
• B. 1-4 GHz
• C. 4-8 GHz
• D. 8-16 GHz

Answer: (B)

Clock speed in gigahertz shows how many cycles a CPU can complete each second. For most personal computers, the typical base clock per core sits in the 1–4 GHz range. That makes 1–4 GHz the best match because it reflects what you’ll see on mainstream CPUs today. Lower ranges like 0.5–2 GHz are more common in older or low-power chips, while higher ranges such as 4–8 GHz or 8–16 GHz are not typical for standard consumer CPUs at their base frequency (though some can boost above 4 GHz under certain conditions). Remember, real performance also depends on the CPU’s architecture, number of cores, and how efficiently it handles instructions, not just clock speed.