Intel appears to artificially segment its new Rocket Lake desktop CPU lineup by limiting the memory controllers on non-i9K(F) SKUs - NotebookCheck.net News
Intel Core i99900K Processor 16M Cache up to 5.00 GHz Product Specifications
Amazon.com: Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W : Electronics
Amazon.com: Intel Core i9-10900K Desktop Processor 10 Cores up to 5.3 GHz Unlocked LGA1200 (Intel 400 Series Chipset) 125W : Everything Else
Questionable leak indicates Rocket Lake-S Core i9-11900K to be 8% to 14% faster than Core i9-10900K in gaming; Core i9 and Core i7 to come in five variants each - NotebookCheck.net News
Intel Adaptive Boost Technology - Intel & Motherboard partners planning new turbo feature for the 11th Gen Intel Core i9K and i9KF processors - Keep an eye out for motherboard software updates :
Intel Core i9-13900K vs Intel Core i9-12900K: Is next-gen better?