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Pentium
Launched in 1993The Intel Pentium is a fifth-generation x86 microprocessor family introduced in 1993 that preserves the 80486-era IA-32 software model, 32-bit protected mode, paging, and full backward compatibility while implementing a substantially more advanced superscalar microarchitecture capable of issuing up to two integer instructions per cycle under favorable conditions. Its defining innovation is the dual-pipeline design, with paired U and V pipelines allowing limited parallel execution, combined with separate 8 KiB code and 8 KiB data L1 caches, a much stronger branch prediction mechanism, a widened 64-bit external data bus, and a significantly improved integrated floating-point unit that made it vastly more capable than the 486 in both integer and floating-point workloads. The family spans multiple generations, from the original P5 core through later MMX-enhanced derivatives, and remained fundamentally in-order, but it marked a major step in x86 evolution by bringing superscalar execution, higher memory bandwidth, and stronger multimedia and numerical performance to the mainstream PC platform. Architecturally, the Pentium does not redefine IA-32 the way the 386 had, but it is the processor that established x86 as a high-performance superscalar desktop architecture and laid the foundation for the more aggressive out-of-order designs that followed.
Pentium Demo Board
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Pentium Mech. Sample
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Pentium 90 Mhz ES
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Pentium 90 MHz MS
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Pentium 100 Mhz ES
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Pentium 120 Mhz ES
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Pentium 120 MHz MMX
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Pentium 133 MHz ES
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Pentium 150 MHz ES
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Pentium 166 Mhz ES
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Pentium 200 MHz ES
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Pentium 233 MHz ES-P
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Pentium 233 MHz ES-C
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Pentium 266 MHz ES
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Pentium Mobile MS
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