The Intel Pentium Pro Processor; Characteristics - HP Vectra XU 6/XXX Optimization Manual

2 Technical Reference

The Intel Pentium Pro Processor

The Intel Pentium Pro Processor
Your PC uses the latest development in x86 family processors, the Intel
Pentium Pro. This processor implements a number of new features,
such as superpipelining and an integrated level-two cache. It offers a
performance that is almost twice that of a Pentium processor operating
at the same external clock speed.
Your PC is supplied with one Pentium Pro processor as standard, but
also provides a socket for installation of a second Pentium Pro
processor. If you are using an operating system that supports the Intel
Multiprocessor Specification (MPS), you can improve your PC's
processing performance by installing a second processor.

Characteristics

The Pentium Pro processor uses a 64-bit external data path and a
36-bit address bus. It integrates two 8 KB level-one cache memories
(one for instructions, one for data) and a 256 KB level-two cache.
Internally it uses three pipelines and five execution units for
instruction execution.
The table below summarizes the Pentium Pro's characteristics and
compares them with those of the Intel Pentium processor.
Data bus
Address bus
Level-one cache
Level-two cache
Superscalar design
Execution units
Branch prediction
Speculative execution
Out-of-order execution
50 English
Intel Pentium Pro
64-bit
36-bit
8 KB data, 8 KB instruction
256 KB
Three-way
Five
Advanced dynamic
Yes
Yes
Intel Pentium
64-bit
32-bit
8 KB data, 8 KB instruction
None
Two-way
Three
Dynamic
No
No