AMD K5

AMD K5

An AMD K5 PR166 microprocessor
General information
Launched	March 27, 1996 (SSA/5) October 7, 1996 (5k86)
Common manufacturer	AMD
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	4.3M 500 nm
Cores	1
Sockets	Socket 5 Socket 7
Products, models, variants
Model	SSA/5 Series 5k86 Series
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.