Has Apple deliberately nerfed the M3 Pro CPU? And for what reason?

From Apple’s slides starting at 10:29:

M3 = 35% faster CPU than M1; 20% faster than M2

M3 Pro = 20% faster CPU than M1 Pro; No comparison to M2 Pro was given! 🤔

M3 Max = 80% faster than M1 Max; 50% faster than M2 Max

When Apple announced the M2 Pro they claimed it was 20% faster than M1 Pro. So are we to assume M3 Pro has no performance improvement this gen?

They’ve reduced the number of performance cores from eight to six, and as per the OP memory bandwidth at 150GB/sec is lower than the 200GB/sec of the M1 Pro.

It seems reducing the number of performance cores in favour of efficiency cores has eliminated any performance uplift M3 Pro had over M2 Pro.

Curious what financial benefit is there to making it have 25% less memory bandwidth?

Is it to drive consumers to a more expensive product?

I get they have 25% less bandwidth. But why?

I think TSMC’s 3nm has been a dud. Yields are lower, which constrains available chips and forces Apple to use more ‘binned” chips where something is wrong (GPU core doesn’t work right, memory bus is not fully functioning, etc) and also accept some chips that need higher power to stay stable.

This leads to a weak generational leap and the odd proliferation of chip configs/chip options.

Is it the same story as with Nvidia 4000 series? Meaning they upped the frequency but reduced bus width.