Why is my Calculated CPU Clock Speed Incorrect?
There are a few reasons why your calculated CPU clock speed may differ from what is expected:
- CPUs made for portable computers can decrease their clock speed to lower power usage. For example, a Pentium III 1000 Mobile CPU may be measured as having a clock speed of 730Mhz at the time the measurement is done.
- The speed rating values that AMD assign to their Athlon CPU's do not correspond to their clock speed. For example, a Athlon 2000+ runs at a clock speed of 1660Mhz. This is also the case for the older Cyrix 150+ & 200+ CPUs