Nah, the K6 was not an AMD design, it was NexGen. (I had a Nx686 motherboard back in the day. I was young and wasted way too much money on exotic parts. I also had an Ark Logic video card about the same time, it might've been the Hercules Stingray Pro but my memory is a bit fuzzy after 25 years.)

https://en.wikipedia.org/wiki/AMD_K6

The AMD K6 is a superscalar P5 Pentium-class microprocessor, manufactured by AMD, which superseded the K5. The AMD K6 is based on the Nx686 microprocessor that NexGen was designing when it was acquired by AMD. Despite the name implying a design evolving from the K5, it is in fact a totally different design that was created by the NexGen team, including chief processor architect Greg Favor, and adapted after the AMD purchase.