The AMD K5 microprocessor is a Pentium-class 32-bit CPU manufactured by American company Advanced Micro Devices (AMD), and targeted at the consumer market. It was the first x86 processor designed by AMD from the ground up, and not licensed or reverse-engineered as previous generations of x86 processors produced by AMD.
Desktop CPU
K5 (model 0, 500 & 350 nm) CPU-ID: 5-0-0, 5-0-1: Part numbers which contain "SSA/5" are 500 and part numbers which contain "K5-PR" are 501 Transistors: 4.3 million Die size: 251 mm²(SSA/5), 161 mm²(K5-PR) Manufacturing Processes: 500 nm (SSA/5), 350 nm (K5-PR)
K5 (model 1, 350 nm) CPU-ID: 5-1-1 Transistors: 4.3 million Die size: 181 mm² This is the first K5 processor family that internally ran at slower speed than its rated speed.
K5 (model 2, 350 nm) CPU-ID: 5-2-4 Transistors: 4.3 million Die size: 181 mm²
K5 (model 3, 350 nm) CPU-ID: 5-3-4 Transistors: 4.3 million Die size: 181 mm²