CPU的频率有主频、倍频和外频。某处理器外频是200MHz，倍频是13，该款处理器的主频是（ ）。
- A.2.6GHz
- B.1300MHz
- C.15.38Mhz
- D.200MHz
正确答案及解析
正确答案
解析
CPU的主频就是CPU的工作频率，也就是它的速度，单位是MHz。
CPU的外频是其外部时钟频率，由电脑主板提供，单位也是MHz。
CPU的倍频是主频为外频的倍数，故也叫倍频系数，它是没有单位的。
CPU的主频=外频×倍频。
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