AMD UK on Twitter: "From humble beginnings 😇 On the left you can see an AMD K5 PR133 from 1996 in the 0.35 micrometre manufacturing process with a core and clock rates
thandor.net - K5 PR133
Microprocessor History - AMD K5, Red Team's First in-house Architecture
Xhoba's cpu collection - View details on AMD K5 PR133