His work also lines up nicely with the DEC Alpha, early Athlon/Opteron, and Apple A4/A5.

With no malice, I'm not aware if anything of significance came from his time at Tesla.

It will be interesting to see if AMD can keep things going past Zen 3 next year (which is likely to be the end of Keller's direct influence), and also what Intel can do with his guidance, which I would expect to release sometime in 2021-2023.