Pentium
The Pentium family of processors is the current generation of CPU's for personal computers from Intel.
Pentium processors trace their heritage all the way back to the original Intel 8088 CPU used in the original IBM-PC in 1981.
Intel renamed the 80586 processor Pentium because of the difficulties of trademarking numbers. This was a move by Intel to create confusion in the marketplace which would reduce commodotization in the CPU market and allow them to retain higher profit margins in the face of low-cost competitors like AMD.
Intel retained the Pentium name for suceeding generations of processors. These CPU's bear little internal resemblance to the original Pentium design, but do maintain code compatibility back to the 8088 CPU.
| CPU | Transistors | Max Clock Speed | L1 Cache | L2 Cache |
|---|---|---|---|---|
| Pentium III Xeon | 28M | 1000hz | 32KB | 64KB |
| Mobile Celeron | 28M | 1800hz | 32KB | 256KB |
| Pentium III-M | 44M | 1333hz | 32KB | 512KB |
| Pentium III | 44M | 1400hz | 32KB | 512KB |
| Celeron | 44M | 1800hz | 8KB Data + 12KB ETC | 128KB |
| Pentium 4-M | 55M | 2200hz | 8KB Data + 12KB ETC | 512KB |
| Pentium 4 | 55M | 3066hz | 8KB Data + 12KB ETC | 512KB |
| Xeon | 55M | 2800hz | 8KB Data + 12KB ETC | 512KB |
| Pentium-M | 77M | 1700hz | 8KB Data + 12KB ETC | 1MB |
| Xeon MP | *** | 1600hz | 20KB | 256KB |
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