There are plenty of 265K's available meaning if they all don't have a "broken/defected" Skymont cluster then they are 265K's just because they couldn't hit 285K frequency specs.
Massive waste if a whole perfectly functional Skymont cluster is being disabled to produce 265K. They should've created an intermediate 275K with roughly 265K clocks and 12 maybe slightly slower Skymont cores.
Few things to note here:
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www.intel.com
To hit only 200 MHz higher TVB and just 100 MHz higher Turbo boost Max 3.0/P-core Max Turbo clocks while having enough power left to feed 12 Skymont cores, Intel needs very power efficient (less leaky) P-cores that can do more with less P-core power budget.
265K base frequencies for both P and E cores are higher due to more power available to fewer cores compared to 285K.
GPU frequencies are same between 265K and 285K which is unusual because usually Core i9's GPU clocks higher, even if by 50 MHz only.
Unlike Raptor Bake, Arrow Lake's TJmax is 105C which is nice additional thermal headroom for overclocked usage without throttling.
^^^ prompted me to check:
https://www.intel.com/content/www/u...-24m-cache-up-to-5-40-ghz/specifications.html
And whaddaya know? Intel 3's max operating temp is 110C. Real shame coz if they had been just a little bit more vigilant, Arrow Lake could've launched with higher clocks on Intel 3.
Kinda gives one hope that they could release an Intel 3 fabbed Arrow Lake Refresh with 6 GHz boost for 385K.