Quincy Center for Technical Education
Computer Technology


Intel Microprocessor Characteristics
CPUPackageVoltageSpeed
(MHz)
Data Bus
(bits)
Memory
(Mb)
Cache
(Kb)
Pentium PGA 5 60-200 64 4096 16
Pentium PGA 5 166-233 64 4096 32 MMX
Pentium PGA 1.5 150-200 64 64,000 1,000 Pro
Celeron PGA,
SEC
1.5 266-600 64 4096 128
Pentium II SEC 1.5 233-450 64 64,000 512
Pentium II SEC 1.5 400-450 64 64,000 512-1,000
Pentium III SEC,
FC-PGA
1.5 450-933 64 64,000 256
Pentium III
Xeon
SEC 1.5 500-933 64 64,000 256
Intel Processors
    Here are brief descriptions for each of the Intel processors:


    Pentium: This processor features 32-bit multitasking using RISC design techniques and a superscalar architecture that executes two instructions in the same clock cycle. The Pentium expanded the internal bus to 64-bits and high-speed internal cache.

    Pentium Pro: The Pentium Pro was developed as a network server processor specially designed to support 32-bit network operating systems, such as Windows NT, and to be used in configurations of one, two or four processors, with 1 megabit of advanced second level cache.

    Pentium II: The Pentium II is the Pentium Pro with MMX (multimedia extensions*) technology added. The P-II, as it is commonly referred to, is excellent for multimedia work that requires support for full-motion video and 3D images.

    Celeron: Developed for use in desktop and portable computers, the Celeron is a low-cost version of the Pentium II.

    Pentium III: Although recently surpassed by the Pentium IV, the Pentium III has been the highest-powered processor in the Intel arsenal. It features 9.5 million transistors, a 32Kb L1 cache, 512 Kb of L2 cache, and clock speeds of 450 MHz to 1 GHz.

    Xeon: The Xeon processors, both Pentium II and Pentium III, are successors to the Pentium Pro as a network server processor that is capable of addressing and caching up to 64 GB of memory with its 36-bit memory address bus. Xeon processors can be configured with 4 to 8 CPUs in one server.

    NOTE: Multimedia Extensions added three features to the Pentium processor.
  • Fifty-seven new instructions to improve video, audio and graphics capabilities.
  • SIMD (Single Instruction Multiple Data ) technology, in which one instruction can control several data items.
  • Cache doubled to 32 Kb.