Former amd chip architect roast said that the cancellation of K12 processor project was because amd counseled!

Arrangement | Phoebe Coordinating editor | Du min
Produce | CSDN（ID：CSDNnews）

Legendary chip architect Jim Keller He has always been a figure of great interest in the chip industry . In recent days, , He spoke boldly at a meeting , He said that his employer before leaving AMD after , His K12 ARM CPU The project was “ Stupidly cancel ” 了 .

Legend of chip architecture ：Jim Keller

Keller The achievements in chip architecture are unparalleled , He has a distinguished track record in chip architecture design . stay 40 Years of work experience , Time and again, he has created leading products that are considered to be crucial in the chip industry .

He led the development of... At Apple A4 and A5 chip , Help jobs get rid of his dependence on chip manufacturers , Saved Apple billions of dollars . At the same time, he was in AMD As a K7 processor 、K8 The architect of the architecture , help AMD Beat Intel 64 Bit Itanium chips , bring AMD For the first time, it has gained a firm foothold in the field of server chips , And then “ Second Palace ” As a Zen Chip designer . Second leave AMD after ,Keller Went to Tesla , Become the maker of its autonomous driving chip . However, this is still not his final destination ,2018 year , He also joined Intel, the world's largest processor manufacturer , But also in 2020 Annual turnover .

Keller Make complaints AMD Cancel K12

Keller stay 4 In June, an activity was held to publish a report on ” The future of computing “ Speech . He said , in AMD Developed during his tenure Zen 1 Processor architecture , And participated in Zen 2 and Zen 3 project . It means Zen 3 It may be that during this period Jim Keller The last design of the hand of . and AMD The new team is tossing about including Zen 4 Inside 5 Internal design projects .

picture source ：wccftech Official website

Keller Express , stay AMD During the second visit to the palace , He and his team members noticed Arm and x86 The cache design of the processor is basically the same in the execution unit and other aspects , The only difference between the two is the decoding unit , So they decided to go to the original K12 ARM Power on the new chip , Even though AMD“ Foolishly cancelled the project .”

picture source ：wccftech Official website

Jim Keller According to ,K12 ARM CPU The project was actually before he left AMD After the company , Cancelled by some product managers . Because most product managers are afraid of change , But as an architect ,Jim Keller There is no fear of it , And he remembered in AMD I feel very interesting at work .

If I have the honor to continue to this day , be based on ARMv8-A The processor of , Expected to follow Zen The project comes together 、 And focus on energy-efficient application scenarios —— For example, computing intensive servers 、 The embedded 、 And semi customized market segments .

Unfortunately ,AMD The final choice was based on a variety of Zen Semi customized server chip route of core architecture , For example, it is scheduled to appear next year Zen 4c framework （ It focuses on the computing intensive server market ）, Will be in EPYC Bergamo Debut on the platform .

that , Is it Keller Wrong strategic direction judgment , still AMD Fear of change , So I chose a conservative strategy ？ Dear reader , What do you think ？

Reference material ：https://www.theregister.com/2022/06/20/jim_keller_arm_cpu/