Fundamentally when paired with a Z690 motherboard, both the P-core and E-cores are unlocked. In contrast, the E-cores don't have as much headroom or scalability as the P-cores. Having personally taken some time to investigate overclocking ability with the Core i9-12900K before diving into motherboard reviews, I found that the P-cores offer much more in terms of performance. The basic idea is that the P-cores do much of the front-loaded heavy lifting, the grunt work, so to speak, while the E-cores assist in the background with high-threaded workloads with a much lower overall power draw than the P-cores. While Hyperthreading isn't a new technology, the hybrid nature of Alder Lake combining two different types of CPU core is.
Focusing on the Core i9-12900K, it has 8 P-Cores, 8 E-cores, and 24 threads in total. Intel's latest Alder Lake processors feature a hybrid design with P-cores (performance) and E-cores (efficiency). This is because not all of its cores are equal.
When it comes to overclocking on Intel's 12th generation processors, Alder Lake has a new yet important variable to consider.
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