Released in August 1995, four months before the more famous Cyrix 6x86, the Cyrix 5x86 was one of the fastest CPUs ever produced for Socket 3 computer systems. Year 1995 ( MCMXCV) was a Common year starting on Sunday. Events of 1995 The Cyrix 6x86 (codename M1 is a sixth-generation 32-bit 80x86 -compatible Microprocessor designed by Cyrix and manufactured by IBM 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 Socket 3 was a type of CPU socket into which various X86 Microprocessors were inserted A computer is a Machine that manipulates data according to a list of instructions. With better performance in most applications than an Intel Pentium processor at 75 MHz, the Cyrix Cx5x86 filled a gap by providing a medium-performance processor option for aging 486 Socket 3 motherboards (which are incapable of handling Intel's Pentium CPUs, apart from the Pentium Overdrive). The Pentium brand refers to Intel 's single-core x86 Microprocessor based on the P5 fifth-generation Microarchitecture. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The Intel 486, otherwise known as the 80486 i486 or just 486 was the first tightly pipelined X86 design A motherboard is the central or primary Printed circuit board (PCB making up a complex electronic system such as a modern Computer or Laptop The Pentium brand refers to Intel 's single-core x86 Microprocessor based on the P5 fifth-generation Microarchitecture. The Pentium OverDrive was a Microprocessor marketing brand name used by Intel, to cover a variety of consumer upgrade products sold in the mid 1990s It
The Cyrix 5x86 processor, codename "M1sc", was based on a scaled-down version of the "M1" core used in the Cyrix 6x86, which provided 80% of the performance for a 50% decrease in transistors over the 6x86 design. The Cyrix 6x86 (codename M1 is a sixth-generation 32-bit 80x86 -compatible Microprocessor designed by Cyrix and manufactured by IBM In Electronics, a transistor is a Semiconductor device commonly used to amplify or switch electronic signals It had the 32-bit memory bus of an ordinary 486 processor, but internally had much more in common with fifth-generation processors such as the Cyrix 6x86, the AMD K5, and the Intel Pentium, and even the sixth-generation Intel Pentium Pro. The range of Integer values that can be stored in 32 bits is 0 through 4294967295 or −2147483648 through 2147483647 using Two's complement encoding The K5 was AMD's first x86 processor developed entirely in-house introduced in March 1996 The Pentium Pro is a sixth-generation X86 -based Microprocessor developed and manufactured by Intel introduced in November 1995 The chip featured near-complete support for i486 instructions, but very limited support for Pentium instructions. Interestingly, some performance-enhancing features of the cpu were intentionally disabled due to potentially stability-threatening bugs which were not fixed before release time (these features can be enabled with freely-downloadable software utilities; see below). A software bug (or just “bug” is an error flaw mistake Failure, fault or “undocumented feature” in a Computer program that prevents it
The similarly-named SGS-Thomson ST5x86 and IBM IBM5x86C were licensed rebrandings of the Cyrix design (IBM and ST physically produced Cyrix's CPUs for them), marketed separately but identical for practical purposes, apart from the availability of a 75 MHz edition which Cyrix did not bring to market, and slight differences in voltage requirements. STMicroelectronics (,)is an franco-italian Electronics and Semiconductor manufacturer headquartered in in Geneva, Switzerland. International Business Machines Corporation abbreviated IBM and nicknamed "Big Blue", is a multinational Computer Technology The IBM 5x86C is an IBM -branded and -produced version of the Cyrix -designed Cyrix Cx5x86 CPU. The Cyrix 5x86 design, however, should not be confused with the similarly-named AMD Am5x86 which was essentially a fast 486 (not an all-new design like the Cyrix part) but which had broadly similar performance, used the same Socket 3, and was introduced at the end of the same year. The Am5x86 processor is an X86 -compatible CPU introduced in 1995 by AMD for use in 486 -class Computer systems
Specifications
- iDX4WB pinout, 168 pins
- Socket 3
- 2. Socket 3 was a type of CPU socket into which various X86 Microprocessors were inserted 0 million transistors on 0. 65 micrometre process
- 144mm² die
- 3. 45 volts electricity usage
- 16 kibibytes unified level-one cache
100 MHz capable edition for 25 MHz (25×4), 33 MHz (33×3), and 50 MHz (50×2) front side bus
120/133 MHz capable edition for 40 MHz (40×3) and 33 MHz (33×4) front side bus. A kibibyte (a contraction of ki lo bi nary byte) is a unit of Information or Computer storage, established by the International In Personal computers the Front Side Bus ( FSB) is the bus that carries data between the CPU and the northbridge. The 133 MHz version is very rare, however, and producers of upgrade kits were given preferential access to it.
External links
- Comparative performance benchmarks
- Cyrix 5x86
- Cyrix 5x86 Processor Brief
- Entry in 486 processors chart
- Performance-enhancing utility to enable 5x86 "register bits"
- Information on write-back cache performance-enhancing utility from Evergreen Tech(see "Cyrix5x86" section in the middle of the page and "et9603. exe" hyperlink)
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic