JIM KELLER SHIT WRECKER

good thread

great thread

https://www.youtube.com/watch?v=ffl4HDp-_S4

>>57735955
After all, what is his story? Is he really that good?

Will he work on Zen+?

>>57737241
he's long gone, to Tesla Motors IIRC.

>>57737075
He was the architect for x86-64, HyperTransport, and K8/Athlon64 before jumping ship to PA Semi/Apple where he helped make Apple's mobile A4/A5 chips not shit.

>>57737331
But didn't di any of this alone.

>>57737410
no shit, but architectures usually succeed or fail at the high level, not because of obscured details under the cover.

Frankly just getting x86 extended to 64b and getting integrated memory controllers added was probably mostly political, but pushing past all the safe and/or popular but mediocre alternatives is a talent in and of itself.

>>57737241
Zen+ is already done. The generation after it probably too. It takes several years it for a from scratch design to hit the mass market. In the time between tapeouts the CPU designers are idle and have more than enough time to design the next generation of that architecture.

This is the reason why AMD sticked with the bulldozer architecture so long. They bet on multicore performance and by the time the first bulldozer came out and nobody gave a fuck about multicore performance they already designed enough CPU generations for the next few years. Even if they started development of Zen as soon as the first Bulldozer hit the shelves they'd still be stuck with their X generations of bulldozer. So they have no choice other than to release bulldozer improvements for the next few years until Zen comes out.