Intel Pentium III processor families
Pentium III microprocessor family was an evolutionary upgrade from Pentium II. The first Pentium III core, Katmai, featured SSE instruction set, which allowed SSE-enabled applications to process up to four single-precision floating point numbers at once. Other Pentium 3 cores added other features, like 256 and 512 KB on-die L2 cache memory and smaller package size. During its lifetime, the core of Pentium III microprocessors was shrunk twice - from 0.25 micron to 0.18 micron, and then to 0.13 micron.
Like the previous generation of x86 processors, the Pentium III family consists of a few sub-families targeting different segments of computer market:
At a glance
0.13 - 0.25
400 - 1400
L2 cache size (KB):
256 - 2048