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Considering how AMD also beats intel on power/perf by a wide margin and they compared their results against Intel CPUs I wouldn't be surprised if their power/performance was close to AMD (they do have heterogeneous CPU cores which of course is not the case in traditional x86)

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Apple's perf/watt is much higher than AMD. Anandtech has the A14 within a few percent of the 5950X on single threaded workloads. Power consumption is 5 watts (entire iPhone 12) versus 49 watts (5950X package power).

Normalizing for performance (say A14 vs 5950X at 4.5GHz instead of 5GHz) would close the gap somewhat, but it's still huge. Perhaps 4x instead of 10x - those last 500MHz on the AMD chip cost a ton of power.

Of course, none of this is particularly surprising considering Apple is using both a newer process and gets nearly 60% higher IPC.

[1]: https://www.anandtech.com/show/16226/apple-silicon-m1-a14-de...

You are comparing a desktop processor that's been tuned to overboost as much as thermals will allow it to a mobile phone CPU ?!?

AMD has a laptop series of CPUs, M1 compared to that is the only relevant comparison - the rest is apples to oranges.

AMD's Smart Memory Access would like to have a word. I'd note that in unoptimized games, they're projecting a 5% performance boost between their stock overclock and SMA (rumors put the overclock at only around 1%).

https://www.amd.com/en/technologies/smart-access-memory

I don't understand what that has to do with power/performance ? Did you mean to reply to someone else ?

Yes.

I would say on your topic though that Intel has a hybrid chip that might interest you. Lakefield pairs 4 modified Tremont cores with 1 Sunny Cove core.

https://www.anandtech.com/show/15877/intel-hybrid-cpu-lakefi...

I think that we will see how this pans out in practice - but power efficiency is not something I associate with Intel - they just seem to far behind in manufacturing process to be competitive.

I find it interesting, but I'm not really interested in that market segment. Atom competes with the A53 on most things. I want a little more power.

I'd like to see 2 zen cores paired with 4 updated jaguar cores.

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