Taking a note from
the post above (<- Link), there apparently was never any intention of ML being a new uArch.
Given that a uArch takes about 5 years start to finish, it should be no surprise that shifting to tiled design introduced a small performance penalty. This is Raptor Lake adapted to a tiled package and a die shrink.
There are four wins for Intel here. The new node, improved iGPU, inclusion of NPU, and the shift to tiled packaging. The user sees benefit from the iGPU, NPU, more cores, and the uArch of the E-cores is improved - so much improved multi-core performance.
Clearly, not so much benefit in single thread since the P-cores are likely raptor lake based.
People looking for big single thread bumps are looking for Arrow Lake.
The 'original' plan from the earlier post (no Raptor Lake here) :
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