AMD K5 vs. Intel Pentium: clock-for-clock comparison test at 90MHz - YouTube
File:AMD-K5 PR75.jpg - Wikimedia Commons
Katherine the Sixth on X: "Here's an AMD K5. Notable for being the first AMD x86-compatible they designed from the ground up. Also originated the fucking PR system - it's a “PR166”
AMD K5 PR100 CPU Socket7 100MHz 3.52V x86 Microprocessor 32bit Processor | eBay