this post was submitted on 28 Oct 2023
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You are absolutely right about efficiency. Even the (less efficient) M2 is way better than the 6800U for example under single-threaded load. It's ~5W vs ~15W, around 3 times as power hungry as the M2, while performing slightly worse.
The M1 is around 25% more efficient than the M2.
No that's not right. The M2 is far more efficient. Third party tests report he M2 MacBook Air lasts up to 3 hours longer than the M1.
Yes, it draws more power under peak load... but it more than makes up for that with better performance allowing it to return to an idle state more quickly. Give an M1 and an M2 the same task, and the M2 will draw less power to get the task done.
Your original discussion with @[email protected], was about power usage while gaming, and the corresponding worst-case battery life. I was referring to this as efficiency.
I understand now that the term was misleading The M1 is 25% more frugal than the M2 under worst-case load.