The answer to this question was published – perhaps by mistake – by a Lenovo manager. It contains the results of Core i9-12900K, Core i7-12700K and Core i5-12600K, ie 125W models that will soon appear on the market. For each model, there are two values measured in the CineBench R20: One by default, where the processor can consume 241/190/150 watts indefinitely (according to the i9 / i7 / i5 model) and the other, when all have a power limit set to 125 watts. The results from Lenovo are highlighted in the graph:
CineBench R20
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First of all, we can notice that the Core i9-12900K with a consumption not exceeding 125 watts achieves lower performance than the Core i7-12700K in the factory configuration. The closest is Ryzenu 9 3900XT (Zen 2).
Core i7-12700K at 125W limit achieves performance at the level of Core i5-12600K without limit. In this configuration, it is slightly faster than the Core i9-10900K with 10 cores Skylake.
The Core i5-12600K is the least limited to the 125W limit (the default configuration allows you to consume 150 watts). Its performance is then similar to the Ryzen 7 5800X.
Another fact that is worth noting concerns the performance of these processors at the default limits (241/190/150 watts). It is lower than the so far leaked results of the so-called qualification samples. In those, the Core i9-12900K was to reach 11300 or 10545 points, but Lenovo measured 10180 points, ie values not exceeding Ryzen 9 5950X.
Recall that the 105W Ryzen 3000 and 5000 have the upper power limit set to 142 watts and the 65W Ryzen 3000/4000/5000 to 88 watts. Core i7 / i9 limited to 125 watts are thus significantly closer to real Ryzens consumption (they differ theoretical maximum of 13.6%) than in the default configuration, where the difference in real consumption may be double.
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