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WinChip
Central processing unit
Produced: From 1997 to 1999
Manufacturer: Centaur / IDT
Max CPU clock: 180 MHz to 250 MHz
FSB speeds: 60 MHz to 100 MHz
Min feature size: 0. Centaur Technology is an x86 CPU design company now a wholly owned subsidiary of VIA Technologies, a member of the Formosa Plastics Group, IDT ( was founded in 1980 as a Semiconductor vendor Employing approximately 2500 people worldwide headquartered in San Jose California and operating The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. In Personal computers the Front Side Bus ( FSB) is the bus that carries data between the CPU and the northbridge. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. 35 µm to 0. A micrometre ( American spelling: micrometer; symbol µm) is one millionth of a Metre, or equivalently one thousandth of a Millimetre 25 µm
Instruction set: x86
Socket: Socket 7
Core names:
  • C6
  • W2, C6+
  • W2A
  • W2B
  • W3

The WinChip series was a low-power Socket 7-based x86 processor designed by Centaur Technology and marketed by its parent company IDT. An instruction set is a list of all the instructions and all their variations that a processor can execute See also X86 assembly language The generic term x86 refers to the most commercially successful Instruction set architecture in the history of Personal Socket 7 is a physical and electrical specification for an X86 -style CPU socket on a personal computer Motherboard. CPU s ( Central processing units in their various incarnations consume some amount of Electric power. Socket 7 is a physical and electrical specification for an X86 -style CPU socket on a personal computer Motherboard. See also X86 assembly language The generic term x86 refers to the most commercially successful Instruction set architecture in the history of Personal Centaur Technology is an x86 CPU design company now a wholly owned subsidiary of VIA Technologies, a member of the Formosa Plastics Group, IDT ( was founded in 1980 as a Semiconductor vendor Employing approximately 2500 people worldwide headquartered in San Jose California and operating

Contents

Overview

The design of the WinChip was quite different from other processors of the time. Instead of a large gate count and die area, IDT, using experience from the RISC processor market, created a small and electrically efficient processor. In Microprocessor design gate count refers to the number of Transistor switches or gates, that are needed to implement a design A die in the context of Integrated circuits is a small block of semiconducting material on which a given functional circuit is fabricated In fact, Winchip had much in common with the 80486, because of its single pipeline, in-order execution, and CISC architecture. The Intel 486, otherwise known as the 80486 i486 or just 486 was the first tightly pipelined X86 design In Computing, a pipeline is a set of data processing elements connected in series so that the output of one element is the input of the next one In Computer engineering, out-of-order execution, OoOE, is a paradigm used in most high-performance Microprocessors to make use of cycles that A complex instruction set computer ( CISC, pronounced like " sisk " is a Microprocessor Instruction set architecture (ISA in which It was of much simpler design than that of its competition, such as AMD K5/K6 and Intel Pentium II, which were based on superscalar RISC x86 decoder approaches with advanced instruction reordering (out of order execution) and multiple pipelines. The K5 was AMD's first x86 processor developed entirely in-house introduced in March 1996 The K6 microprocessor was launched by AMD in 1997 The main advantage of this particular microprocessor is that it was designed to fit into existing desktop designs for The Pentium II brand refers to Intel 's sixth-generation Microarchitecture (" Intel P6 " and x86 -compatible Microprocessors A superscalar CPU architecture implements a form of parallelism called Instruction-level parallelism within a single processor In Computer engineering, out-of-order execution, OoOE, is a paradigm used in most high-performance Microprocessors to make use of cycles that

WinChip was, in general, designed to perform well with popular applications that didn't do much (if any) floating point calculations. This included operating systems of the time and the majority of software used in businesses. An operating system (commonly abbreviated OS and O/S) is the software component of a Computer system that is responsible for the management and coordination It was also designed to be a drop-in replacement for the more complex, and thus more expensive, processors it was competing with. This allowed IDT/Centaur to take advantage of an established system platform (Intel's Socket 7). Socket 7 is a physical and electrical specification for an X86 -style CPU socket on a personal computer Motherboard.

WinChip 2A added fractional multipliers and adopted a 100 MHz front side bus to improve memory access and L2 cache performance. [1] It also adopted the performance rating concept, similar to how AMD and Cyrix marketed their processors. The PR ( P erformance R ating system was developed by AMD in the mid-1990s as a method of comparing their X86 processors to those of rival Cyrix was a CPU manufacturer that began in 1978 in Richardson Texas as a specialist supplier of high-performance math co-processors for 286 and This method of specifying processor performance helped consumers understand where the WinChip's performance fit in against Intel's competing products. Another revision (2B) was also planned, with a die shrink to 0. 25 μm, but was shipped in limited numbers. [2] A third WinChip was planned as well, this one receiving a doubled L1 cache, but that CPU never made it to market. [2]

The industry's move away from Socket 7 and the release of the Intel Celeron processor signalled the end of the WinChip. Socket 7 is a physical and electrical specification for an X86 -style CPU socket on a personal computer Motherboard. The Celeron brand is a range of X86 CPUs from Intel targeted at budget/value Personal computers with the motto "delivering great quality In 1999, the Centaur Technology division of IDT was sold to VIA. Centaur Technology is an x86 CPU design company now a wholly owned subsidiary of VIA Technologies, a member of the Formosa Plastics Group, VIA Technologies ( is a Taiwanese manufacturer of Integrated circuits mainly Motherboard Chipsets CPUs, and memory, and Although VIA initially branded processors as "Cyrix," the company initially used technology similar to WinChip with its Cyrix III line. The VIA C3 is a family of X86 Central processing units for Personal computers designed by Centaur Technology and sold by VIA Technologies [3]

Performance

Although the small die size and low power-usage made the processor notably inexpensive to manufacture, it never gained much market share. WinChip C6 was a competitor to the Intel Pentium and Pentium MMX, Cyrix 6x86, and AMD K5/K6. The Pentium brand refers to Intel 's single-core x86 Microprocessor based on the P5 fifth-generation Microarchitecture. The Pentium brand refers to Intel 's single-core x86 Microprocessor based on the P5 fifth-generation Microarchitecture. The Cyrix 6x86 (codename M1 is a sixth-generation 32-bit 80x86 -compatible Microprocessor designed by Cyrix and manufactured by IBM It performed adequately, but only in applications that used little floating point math. In Computing, floating point describes a system for numerical representation in which a string of digits (or Bits represents a Real number. Its floating point performance was well below that of the Pentium, being similar to the Cyrix 6x86. [4] The WinChip 2 added a 3DNow! processing unit to strengthen floating point performance. 3DNow! is the Trade name of a multimedia extension created by AMD for its processors starting with the K6-2 in 1998 Unfortunately its 3DNow! unit was not as fast as that in AMD K6-2. [5] This successor targeted the Intel Pentium II, Cyrix MII, and AMD K6-2 processors as competitors. The Cyrix 6x86 (codename M1 is a sixth-generation 32-bit 80x86 -compatible Microprocessor designed by Cyrix and manufactured by IBM The K6-2 was an X86 Microprocessor introduced by AMD on May 28 1998 and available in speeds ranging from 266 to 550 MHz.

WinChip Data

Processor Speed
(MHz)		 FSB
(MHz)		 L1
cache
(KiB)		 L2
cache
(KiB)		 SIMD Pipeline
Stages		 Max TDP Core
(V)		 Process
(nm)
WinChip C6[6] 180 - 240 60 - 75 64 0 MMX 4 13. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. In Personal computers the Front Side Bus ( FSB) is the bus that carries data between the CPU and the northbridge. A kibibyte (a contraction of ki lo bi nary byte) is a unit of Information or Computer storage, established by the International In Computing, SIMD ( S ingle I nstruction M ultiple D ata is a technique employed to achieve data level parallelism as in a Vector The Thermal Design Power (TDP (sometimes called Thermal Design Point) represents the maximum amount of power the cooling system in a computer is required to dissipate The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. A nanometre ( American spelling: nanometer, symbol nm) ( Greek: νάνος nanos dwarf; μετρώ metrό count) is a MMX is a single instruction multiple data (SIMD Instruction set designed by Intel, introduced in 1997 in their Pentium line of 1 W at 240 MHz 3. The watt (symbol W) is the SI derived unit of power, equal to one Joule of energy per Second. 52 350
WinChip 2[2] 200, 225, 240 60 - 75 64 0 3DNow!, MMX 4 14. 3DNow! is the Trade name of a multimedia extension created by AMD for its processors starting with the K6-2 in 1998 0 W at 240 MHz 3. 52 350
WinChip 2A[2] 200, 233, 250
PR200, PR233, PR300		 66 / 100 64 0 3DNow!, MMX 4 16. 0 W at 250 MHz 3. 52 350
WinChip 2B[2] 200, 200
PR200, PR233		 66 / 100 64 0 3DNow!, MMX 4 6. 3 W at 200 MHz 2. 80 250
WinChip 3[2] unreleased 66 / 100 128 0 3DNow!, MMX 4 2. 80 250

See also

References

  1. ^ Hare, Chris. This page lists x86 -compliant microprocessors sold by VIA Technologies, grouped by technical merits (cores within same group have much in common Processor Speed Settings, accessed April 24, 2007.
  2. ^ a b c d e f IA-32 implementation: Centaur WinChip 2, SandPile. org, accessed April 29, 2007.
  3. ^ Witheiler, Matthew. The New VIA Cyrix III: The Worlds First 0.15 Micron x86 CPU, AnandTech, January 5, 2001.
  4. ^ Pabst, Thomas. The IDT WinChip C6 CPU, Tom's Hardware, October 9, 1997.
  5. ^ IDT Winchip 2 266 Review, X-bit labs, April 18, 1999.
  6. ^ IA-32 implementation: Centaur WinChip, Sandpile, accessed May 13, 2007.

External links

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