What I care about all the time is the microarchitect which had potential, but this potential was not used mainly due to problems with the production process
No. The area increase between RKL and CML was not due to a production process issue. That's an iso node comparison, the area increase was solely due to how many extra transistors the larger CYPC (backported SNC) architecture took.
You see the same thing between PLMC and SNC. SNC there is like 25% larger than PLMC.
Zen 3 iso process was only 10-15% larger. AMD is getting the same IPC increase for less area.
The power increase, can also be compared iso process with RKL and CML. RKL consumes way more power for the same frequency,
across the curve. It's less efficient than comet lake in some instances
even at the same core count. It's that ridiculous.
Even if we assume 10nm+ has
no energy efficiency gains over 14nm+++, it's still pretty sad to see ICL products have ~the same energy efficiency as CML does. And I'm not talking about 125 watt desktop chips where ICL might have issues scaling due to the node, no, I'm talking about when it's at the 15 watt mobile range.
Even accounting for the process node, Sunny Cove is just a bad architecture. There's really nothing more to it. I've said the same stuff numerous times now. I'm accounting for the process node. That's the entire reason why I brought up RKL as well, it's because you can compare the two architectures on the same 14nm process.
Sunny Cove is just a worse Zen 3. Worse in performance, worse in power, worse in area. Willow Cove on Intel 10SF shows what Sunny Cove would look like on a better node. And guess what? It caches up in performance- still takes the L in power and area. It took all the way to Golden Cove for Intel to
catch up to Zen 3 in energy efficiency.
I really do hope Intel revives their core architecture team, because they have not had a really good core architecture in a
while. LNC looks like a dud too based on perf projections, but I really do still have hope for the area and power side of things.
Edit: just a bonus piece of speculation, I think RWC should at the very least, be competitive in power with Zen 4. Ties in performance it looks like, but is a bigger core. Prob one of the best cores Intel has released versus AMD in a long time. Too bad Zen 5 drops only like half a year after RWC does.