Why did Intel abandon HT (which I don't mind at all and it's not to be discussed in this thread) and not E-cores since they already implemented segmental layout? Is there anything real engineers can see going wrong that I don't? Once again, if it's all only limited to cash and marketing then I don't even know what to say.
You are thinking technicals is the issue, which is why it makes no sense. The problem(and the solution) is always the people. Bad management, disgruntled employees, infighting within the organization, etc.
The P core team is in shambles right now, so they could not have HT in Lion Cove, since HT is easy in terms of die resources but difficult in terms of validation, as everything needs to work across two threads without contention, without errors in execution, and now we have to worry about security too.
Since Intel is such a big company, they have parallel design teams, and they happen to have the E core team, which has been executing, far, far better. Thus in the recent years with Tremont, and Gracemont, they caught up significantly. Since the main product line were all P cores and falling behind competition, they decided to include E cores.
That's why we're here today.
That's definitely a statement.
Would've loved to read the thought process behind that, preferrably sans baseless speculations.
Tremont E core came out in 2020, and it performed way, way behind Sunny Cove core in Icelake. Tremont was Ivy Bridge level. Then Gracemont came out and was almost Skylake level in 2021, and Golden Cove was 19% better than Sunny Cove. Golden Cove was 40% faster than Gracemont per clock. Skymont is 2024, and Lion Cove is mere 10-15% ahead of Skymont per clock.
E cores:
Tremont 2020: Ivy Bridge(2014)
Gracemont 2021, 30% faster per clock than Tremont: Skylake(2016)
Skymont 2024, 30% faster per clock than Tremont, 70% faster in FP: Golden Cove(2021)
P cores:
Sunny Cove 2019, 18% faster than Skylake
Golden Cove 2021, 19% faster than Sunny Cove
Lion Cove 2024, 9% faster than Golden Cove
Let me repeat, Skymont is 1/3rd the size of Lion Cove P core, despite being just 10-15% difference in performance per clock. What do you think the next iteration of E cores will do against the next P cores? E cores to 30% every 2 years, versus under 20% for the P cores, sometimes way under during the same timeframe.