Pentium III:
The Pentium III is an x86 (more specifically, an i686) architecture
microprocessor by Intel, introduced on February 26, 1999. Initial versions were
very similar to the earlier Pentium II, the most notable difference being the
addition of SSE instructions and the introduction of a controversial serial
number which was embedded in the chip during the manufacturing process. As
with the Pentium II, there was also a low-end Celeron version and a high-end
Xeon version. The Pentium III was eventually superseded by the Pentium 4. An
improvement on the Pentium III design is the Pentium M.
Produced: From early 1999 to late 2000
Manufacturer: Intel
CPU Speeds: 450 Mhz to 1.4 Ghz
FSB: 100 Mhz to 133 Mhz
Fabrication Size: 0.25 µm to 0.13 µm
Architecture: x86
Sockets: Slot 1 , Socket 370
Cores: Katmai, Coppermine, Coppermine-T, Tualatin
Pentium IV
The Pentium 4 is a seventh-generation x86 architecture microprocessor
produced by Intel and is their first all-new CPU design, called the NetBurst
architecture, since the Pentium Pro of 1995. Unlike the Pentium II, Pentium
III, and various Celerons, the architecture owed little to the Pentium Pro/P6
design, and was new from the ground up. The microarchitecture of Netburst
featured a very deep instruction pipeline, with the intention of scaling to very
high frequencies. It also introduced the SSE2 instruction set for faster SIMD
integer, and 64-bit floating-point computation. Later Pentium 4 models
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