Description
The Pentium Pro is a sixth-generation x86 microprocessor developed and manufactured by Intel and introduced on November 1, 1995. It introduced the P6 microarchitecture (sometimes termed i686) and was originally intended to replace the original Pentium in a full range of applications. While the Pentium and Pentium MMX had 3.1 and 4.5 million transistors, respectively, the Pentium Pro contained 5.5 million transistors. Later, it was reduced to a more narrow role as a server and high-end desktop processor and was used in supercomputers like ASCI Red, the first computer to reach the trillion floating point operations per second (teraFLOPS) performance mark in 1996. The Pentium Pro was capable of both dual- and quad-processor configurations. It only came in one form factor, the relatively large rectangular Socket 8. The Pentium Pro was succeeded by the Pentium II Xeon in 1998.
| General information | |
| Type | CPU / Microprocessor |
| Market segment | Server |
| Family | Intel Pentium Pro |
| CPU part numbers |
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| Frequency ? |
180 MHz |
| Bus speed ? | 60 MHz |
| Clock multiplier ? | 3 |
| Package | 387-pin Modified Staggered Ceramic Pin Grid Array with gold plated heat spreader 2.66″ x 2.46″ (6.76 cm x 6.25 cm) |
| Socket | Socket 8 |
| Weight | 3.2oz / 90g |
| Introduction date | 1-Nov-95 |
| Upgrade options | Pentium II Overdrive |
| S-spec numbers | |
| Architecture / Microarchitecture | |
| Instruction set | x86 |
| Microarchitecture | P6 |
| Core stepping ? |
sA0 |
| CPUIDs |
616 617 619 |
| Manufacturing process | 0.35 and 0.6 micron 5.5 million transistors |
| Data width | 32 bit |
| Data bus width | 64 bit |
| Floating Point Unit | Integrated |
| Level 1 cache size ? | 8 KB 4-way set associative instruction cache 8 KB 2-way set associative data cache |
| Level 2 cache size ? | 256 KB |
| Pipeline | 12-stage |
| Multiprocessing | Up to 4 processors |
| Low power features | |
| Electrical / Thermal parameters | |
| V core ? | 3.3V ± 5% |
| Minimum/Maximum operating temperature ? | 0°C – 85°C |
| Typical/Maximum power dissipation |
24.8 Watt / 35 Watt |
| Thermal Design Power ? | 31.7 Watt |
| Notes on Intel KB80521EX180 256K | |
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