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28 million transistors; All models support: MMX, SSE The 'B' suffix denotes a 133 MHz FSB when the same speed was also available with a 100 MHz FSB. The 'E' suffix denotes a processor with support for Intel's Advanced Transfer Cache [1] in Intel documentation; in reality it indicates a Coppermine core when the same speed was available as either Katmai or Coppermine.
The Pentium III [2] (marketed as Intel Pentium III Processor, informally PIII or P3) brand refers to Intel's 32-bit x86 desktop and mobile CPUs based on the sixth-generation P6 microarchitecture introduced on February 28, 1999. [citation needed] The brand's initial processors were very similar to the earlier Pentium II-branded processors.
Intel Pentium E2180 @ 2.00GHz closeup. The Intel Pentium Dual-Core processors, E2140, E2160, E2180, E2200, and E2220 use the Allendale core, which includes 2 MB of native L2 cache, with half disabled leaving only 1 MB.
Versions of these processors for the laptop market were initially named Mobile Pentium II and Mobile Pentium III, later versions were named Pentium III-M. Starting with the Pentium II, the Celeron brand was used for low-end versions of most Pentium processors with a reduced feature set such as a smaller cache or missing power management features.
Smithfield (Pentium Extreme Edition) – 90 nm process technology (3.2 GHz) Variants Pentium 840 EE – 3.20 GHz (2 × 1 MB L2) Presler (Pentium Extreme Edition) – 65 nm process technology (3.46, 3.73) 2 MB × 2 (non-shared, 4 MB total) L2 cache; Variants Pentium 955 EE – 3.46 GHz, 1066 MHz front-side bus
Core i7, on the desktop platform no longer supports hyper-threading; instead, now higher-performing core i9s will support hyper-threading on both mobile and desktop platforms. Before 2007 and post-Kaby Lake, some Intel Pentium and Intel Atom (e.g. N270, N450) processors support hyper-threading. Celeron processors never supported it.