AMD K5
| An AMD K5 PR166 microprocessor | |
| General information | |
|---|---|
| Launched | March 27, 1996 (SSA/5) October 7, 1996 (5k86) | 
| Common manufacturer | |
| Performance | |
| Max. CPU clock rate | 75 MHz to 133 MHz | 
| FSB speeds | 50 MHz to 66 MHz | 
| Cache | |
| L1 cache | 8 KB + 16 KB (data + instructions) | 
| Architecture and classification | |
| Application | Desktop, Embedded | 
| Microarchitecture | K5 | 
| Instruction set | IA-32/x86 | 
| Physical specifications | |
| Transistors | 
 | 
| Cores | 
 | 
| Sockets | |
| Products, models, variants | |
| Model | 
 | 
| History | |
| Predecessor | Am5x86 | 
| Successor | K6 | 
The K5 is AMD's first x86 processor to be developed entirely in-house. Introduced in March 1996, its primary competition was Intel's Pentium microprocessor. The K5 was an ambitious design, closer to a Pentium Pro than a Pentium regarding technical solutions and internal architecture. However, the final product was closer to the Pentium regarding performance, although faster clock-for-clock compared to the Pentium.