Cyrix 5x86
The Cyrix 5x86 was a line of x86 microprocessors designed by Cyrix and released on June 5 of 1995. Cyrix, being a fabless company, had the chips manufactured by IBM. The line came out about 5 months before the more famous Cyrix 6x86. The Cyrix 5x86 was one of the fastest CPUs ever produced for Socket 3 computer systems. 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 486 Socket 3 motherboards (which are incapable of handling Intel's Pentium CPUs, apart from the Pentium Overdrive).
A Cyrix 5x86-100GP Microprocessor | |
| General information | |
|---|---|
| Launched | 5 June 1995 |
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| Common manufacturer(s) | |
| Performance | |
| Max. CPU clock rate | 100 MHz to 120 MHz |
| FSB speeds | 25 MHz to 50 MHz |
| Cache | |
| L1 cache | 16 KiB |
| Architecture and classification | |
| Technology node | 0.65 μm |
| Microarchitecture | 5x86 |
| Instruction set | IA-32/x86 |
| Physical specifications | |
| Transistors |
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| Cores |
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| Socket(s) | |
| Products, models, variants | |
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| History | |
| Predecessor(s) | Cyrix Cx486 |
| Successor(s) | MediaGX, Cyrix 6x86 |
The IBM 5x86C is an IBM branded and produced version of the Cyrix-designed Cyrix Cx5x86 CPU. Previous IBM x86 processors, IBM 386SLC and IBM 486SLC, were based on modified Intel designs.