So why exactly did m1 pro/max only have 2 efficiency cores?

[name99]

I don't think Apple's approach to P and E cores is comparable to Intel's. Apple is trying to reduce energy consumption, Intel is trying to maximise multi-threaded performance. That's why Intel's E cores are more about area efficiency while Apple's are more about energy efficiency. Also Intel has more pressure on pricing, so they are more likely to put 4 E cores in the space of 1 P core because together they are about twice as fast but only use about the same area. Large chips are expensive to make. From that viewpoint Intel's strategy makes a lot of sense to me. It also explains why Intel's E cores are faster than Apple's, and why the difference between P and E cores is smaller for Intel.

Jesus dude.
READ what I said before throwing in a comment that has nothing to do with it!