Compaq Evo D500 Technical Reference Manual page 41

2.4.1.1 Celeron Processor
The Celeron processor provides economical performance and is compatible with software written
for previous generation processors such as Pentium II, Pentium MMX, Pentium, and x86
processors. Featuring a Pentium-type core architecture, the Celeron processor integrates a dual-
ALU CPU with a floating-point unit, 32-KB first-level cache, and 128- or 256-KB second level
cache, all of which operate at full processing (CPU) speed. The Celeron processor includes MMX
technology for enhanced multimedia performance and, on 566-MHz and faster versions, include
streaming SIMD extensions (SSE) for enhancing 3D graphics and speech processing performance.
These systems support a Celeron processor of up to 700-MHz with a 66-MHz front side bus
(FSB) or up to a 1.3-MHz processor with a 100-MHz FSB.
2.4.1.2 Pentium III Processor
The Intel Pentium III processor offers maximum performance for select Compaq Deskpros. The
Pentium III processor is compatible with software written for Celeron, Pentium II, Pentium MMX,
Pentium, and x86 processors. Standard configurations include processors of 667-MHz up to 1.20
GHz, depending on model.
The Pentium III processor core integrates a dual-ALU CPU with a floating-point unit, a 32-KB
first-level cache, and a 256-KB second level cache, all operating at CPU speed. The Pentium III
processor includes MMX technology for enhanced multimedia performance. Also included are 70
additional streaming SIMD extensions (SSE) for enhancing 3D graphics and speech processing
performance.
The Pentium III processor also includes the following features:
♦
Improved speculative instruction processing
♦ Identification number
Compaq Deskpro and Evo Personal Computers
Featuring Intel Celeron and Pentium III Processors
Fifth Edition - March 2002
Technical Reference Guide
2-15