The table below shows some common processors and their clock speed.
| Name of CPU | CPU Speed | Level 2 Cache |
| Intel Celeron | 500 MHz - 800 MHz | 128 KB, full speed |
| Intel Pentium II | 233 MHz - 450 MHz | 512 KB, half speed |
| Intel Pentium III | 450 MHz - 1 GHz | 256 KB, full speed |
| Intel Pentium III Xeon | 600 MHz - 1 GHz | 256 KB - 2MB, full speed |
| Intel Pentium 4 | 1.4 GHz - 2 GHz | 256 KB, full speed |
