Jim Keller
Chip architect behind AMD’s Zen, Apple’s A-series and Tesla’s self-driving chip
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Jim Keller is an American microprocessor engineer known for designing landmark chips at DEC, AMD, Apple and Tesla, including AMD’s Athlon 64 and Zen architectures. Since 2023 he has been CEO of the AI-chip company Tenstorrent.
Biography
DEC and AMD
Keller studied electrical engineering at Penn State. At DEC he worked on the Alpha processors. At AMD in the late 1990s he was lead architect of the K8 (Athlon 64) and co-wrote the x86-64 instruction set used by most PCs.
Apple
After working at SiByte and P.A. Semi, which Apple bought in 2008, he helped design Apple’s A4 and A5 chips for the iPhone and iPad.
Zen and Tesla
Returning to AMD in 2012, he led work on the Zen architecture that revived AMD. At Tesla from 2016 to 2018 he led the team that built its self-driving computer chip. He then worked at Intel until 2020.
Tenstorrent
He joined Tenstorrent, which builds AI processors based on RISC-V, as CTO in 2020 and became CEO in 2023.
Timeline
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1998
Joins AMD; works on K8
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2003
Athlon 64 released
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2008
Apple buys P.A. Semi
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2012
Returns to AMD
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2016
Joins Tesla
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2018
Joins Intel
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2023
CEO of Tenstorrent
Did you know?
-
1
He is sometimes called a “rock star” of chip design.
-
2
He rarely stays at one company for more than a few years.
-
3
He is the brother-in-law of the psychologist Jordan Peterson.
Connections
Frequently asked
Who is Jim Keller?
Jim Keller is an American microprocessor engineer known for designing landmark chips at DEC, AMD, Apple and Tesla, including AMD’s Athlon 64 and Zen architectures. Since 2023 he has been CEO of the AI-chip company Tenstorrent.
Where is Jim Keller from?
Jim Keller was born in United States.
What is Jim Keller known for?
Jim Keller is best known for AMD K8 and Zen architectures; Apple A4/A5; Tesla FSD chip; CEO of Tenstorrent.
References
- Jim Keller (engineer) — Wikipedia. Wikipedia. Retrieved 4 November 2026.
- Jim Keller (engineer) (Q19958281) — structured data. Wikidata. Retrieved 4 November 2026.
Includes material from the Wikipedia article “Jim Keller (engineer)”, licensed under CC BY-SA 4.0. That text is available under the same licence. Learn more
External links
About this profile
- Researched by the TrackFame editorial team; reviewed by Sanjay Sokal under our editorial policy
- First published 4 November 2026
- Last updated
Cite this page
“Jim Keller.” TrackFame, last updated 5 November 2026. https://trackfame.com/person/jim-keller
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