Its obvious that the bigger die chip goes to the higher end i5 12600 and above SKUs. The budget will get the crippled chip. I suspect it is not just the E-cores that got chopped, but also things like cache size and likely graphic solution as well. Typical Intel strategy where they will always try and create some differences to milk their customers. Anyway from a gaming perspective, I think the efficient cores get disabled anyway, so no big deal losing them. Only problem is how much cache is left, that may have some impact to gaming performance.