ylk1

Most of the production engines still use tumble flow combustion

For reference: Nissan e-power with recuperation ~50%: https://www.nissan-global.com/EN/INNOVATION/TECHNOLOGY/ARCHI...

Mahle ~45% with pre-chamber: https://www.mobilityengineeringtech.com/component/content/ar...

Toyota dynamic force engines ~40% : https://www.thedrive.com/tech/18919/toyota-develops-worlds-m...

Toyota's newest engines claim even more: https://global.toyota/en/newsroom/corporate/40850156.html

Honda hybrid ~40%: https://hondanews.com/en-US/honda-automobiles/releases/relea...

Startup Carnot engines claim 70% efficiency: https://carnotengines.com/technology/

The geometric compression limit for F1 is 18:1. They make it sound like they can go farther.

Mercedes crossed 50% thermal efficiency in 2018 with their F1 engine: https://www.roadandtrack.com/motorsports/a15049580/mercedes-... Their recent interviews suggest they are up by 2 to 3% on that

Honda did too but they never marketed the explicit number.

what are you even talking about? A lot of stuff is clearly laid out on how they achieved better efficiency.

You can get more power out of NA with better materials you've stated but not efficiency.

F1 wanted more road relevancy and hence ended up with turbo-charging and Fuel limits

Ferrari's partner MAHLE has pre-chamber ignition productized for OEMs: https://www.mahle-powertrain.com/en/experience/mahle-jet-ign...

I think, Maserati MC20 has this tech.

They've detailed their work on engine/MGU-K/MGU-H/ESS here: https://global.honda/en/tech/motorsports/Formula-1/

The only manufacturer to release any details about their powertrain technology.

Read this: https://www.reddit.com/r/explainlikeimfive/comments/1ch6ifi/...

New accelerator in upcoming chips.

Can you try micro bench marking Apple Cores? Nobody seems to be doing that, yet people claim they are the best in business.

Nice read!

He was an actual Microarchitect in his early career. This guy clearly has good knowledge on every aspect of microprocessor design: transistor, interconnect, process complexity, core layout & utilization, ease of design, circuit complexity, time to market, micro architectural behaviors, ISA & software patterns. From what I've seen he is really good at setting targets for the teams, especially given that he has been at multiple companies, he clearly knows what is good and what is lacking. Setting aggressive targets and motivating the team towards them. Something the previous management failed at.

Great article as usual! Nice analysis. btw, just wondering, were you a processor architect in your previous roles?

I wonder about the same points for a CPU Architect too.