[turtlebits]

You can't compare battery capacities with the M1.

Under load the M1 uses significantly less power than any current AMD or Intel CPU.

I'm pretty sure the M1 would last longer than your T470 on both batteries (95Wh + 75Wh).

[kuschku]

The M1 Max draws in Cinebench single thread 11W, in multi thread 34W.

That's not much, but it's not the 2x-4x more efficient it'd need to compensate for the smaller battery.

Only for idle, browsing, video en/decoding, etc will you see significant improvements. For developers, the M1 is close, but not perfect.