题目详情

关于计算机性能的评价,下列说法中错误的是()。

  • A.微处理器主频高的机器比主频低的机器速度快
  • B.平均指令执行速度(MIPS)能正确反映计算机执行实际程序的速度
  • C.基准程序测试法能比较全面地反映实际运行情况,但各个基准程序测试的重点不一样
  • D.EEMBC测试基于每秒钟算法执行的次数和编译代码大小的统计结果

正确答案及解析

正确答案
A
解析

主频高的机器不一定比主频低的机器速度快,因为指令系统不同,各指令使用的机器周期数也不同。

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